1. Which interrupt has the highest priority? a) INTR b) TRAP c) RST6.5 2. In 8085 name the 16 bit registers?a) Stack pointer b) Program counter c) a & b 3. Which of the following is hardware interrupts?a) RST5.5, RST6.5, RST7.5 b) INTR, TRAP c) a & b 4. What is the RST for the TRAP? a) RST5.5 b) RST4.5 c) RST4 5. What are level Triggering interrupts?a) INTR&TRAP b)RST6.5&RST5.5 c)RST7.5&RST6.5 6. Which interrupt is not level sensitive in 8085?a) RST6.5 is a raising edge-trigging interrupt. b) RST7.5 is a raising edge-trigging interrupt. c) a & b. 7. What are software interrupts?a) RST 0 - 7 b) RST 5.5 - 7.5 c) INTR, TRAP 8. Which stack is used in 8085?a) FIFO b) LIFO c) FILO 9. Why 8085 processor is called an 8 bit processor? a) Because 8085 processor has 8 bit ALU. b) Because 8085 processor has 8 bit data bus. c) a & b. 10. What is SIM?a) Select Interrupt Mask b) Sorting Interrupt Mask c) Set Interrupt Mask. 11. RIM is used to check whether, ______ a) The write operation is done or not b) The interrupt is Masked or not c) a & b 12. What is meant by Maskable interrupts? a) An interrupt which can never be turned off. b) An interrupt that can be turned off by the programmer. c) none 13. In 8086, Example for Non maskable interrupts are a) Trapb) RST6.5 c) INTR 14. What does microprocessor speed depends on?a) Clock b) Data bus width c) Address bus width 15. Can ROM be used as stack?a) Yes b) No c) sometimes yes, sometimes no

16. Which processor structure is pipelined?a) all x80 processors b) all x85 processors c) all x86 processors 17. Address line for RST3 is? a) 0020H b) 0028H c) 0018H 18. In 8086 the overflow flag is set when a) The sum is more than 16 bits b) Signed numbers go out of their range after an arithmetic operation c) Carry and sign flags are set M. Krishna Kumar/IISc. Bangalore M1/V1/June 04/1 Microprocessors and Microcontrollers/ Multiple Choice Questions Architecture of Microprocessorsd) During subtraction 19. The advantage of memory mapped I/O over I/O mapped I/O is, a) Faster b) Many instructions supporting memory mapped I/O c) Require a bigger address decoder d) All the above 20. BHE of 8086 microprocessor signal is used to interface the a) Even bank memory b) Odd bank memory c) I/O d) DMA 21. In 8086 microprocessor the following has the highest priority among all type interrupts. a) NMI b) DIV 0 c) TYPE 255 d) OVER FLOW22. In 8086 microprocessor one of the following statements is not true. a) Coprocessor is interfaced in MAX mode b) Coprocessor is interfaced in MIN mode c) I/O can be interfaced in MAX / MIN mode d) Supports pipelining 23. 8088 microprocessor differs with 8086 microprocessor in a) Data width on the output b) Address capability c) Support of coprocessor d) Support of MAX / MIN mode 24. Address line for TRAP is?a) 0023H b) 0024H c) 0033H

M. Krishna Kumar/IISc. Bangalore M1/V1/June 04/2 Microprocessors and Microcontrollers/ Multiple Choice Questions Architecture of MicroprocessorsKey: 1.1 C 1.2 C 1.3 C 1.4 B 1.5 B 1.6 B 1.7 A 1.8 B 1.9 A 1.10 C 1.11 B 1.12 B 1.13 A 1.14 C 1.15 B 1.16 C 1.17 C 1.18 B 1.19 D 1.20 B 1.21 A 1.22 B 1.23 A 1.24 B _________________________________________________________________ 1. The 8051 microcontroller is of ___pin package as a ______ processor. a) 30, 1byte b) 20, 1 byte c) 40, 8 bit d) 40, 8 byte 2. The SP is of ___ wide register. And this may be defined anywhere in the ______. a) 8 byte, on-chip 128 byte RAM. b) 8 bit, on chip 256 byte RAM. c) 16 bit, on-chip 128 byte ROM d) 8 bit, on chip 128 byte RAM. 3. After reset, SP register is initialized to address________. a) 8H b) 9H c) 7H d) 6H 4. What is the address range of SFR Register bank? a) 00H-77H b) 40H-80H c) 80H-7FH d) 80H-FFH 5. Which pin of port 3 is has an alternative function as write control signal for external data memory? a) P3.8 b) P3.3 c) P3.6 d) P3.1 6. What is the Address (SFR) for TCON, SCON, SBUF, PCON and PSWrespectively?a) 88H, 98H, 99H, 87H, 0D0H. b) 98H, 99H, 87H, 88H, 0D0H c) 0D0H, 87H, 88H, 99H, 98H d) 87H, 88H, 0D0H, 98H, 99H 7. Match the following: 1) TCON i) contains status information 2) SBUF ii) timer / counter control register. 3) TMOD iii) idle bit, power down bit 4) PSW iv) serial data buffer for Tx and Rx. 5) PCON v) timer/ counter modes of operation. a) 1->ii, 2->iv, 3->v, 4->i, 5->iii. b) 1->i, 2->v, 3->iv, 4->iii, 5->ii. c) 1->v, 2->iii, 3->ii, 4->iv, 5->i. d) 1->iii, 2->ii, 3->i, 4->v, 5->iv. 8. Which of the following is of bit operations? i) SP ii) P2 iii) TMOD iv) SBUF

v) IP a) ii, v only b) ii, iv, v only c) i, v only d) iii, ii only 9. Serial port interrupt is generated, if ____ bits are set a) IE b) RI, IE c) IP, TI d) RI, TI 10. In 8051 which interrupt has highest priority?a)IE1 b)TF0 c)IE0 d)TF1 11. Intel 8096 is of ___ bit microcontroller family called as ______. a) 8, MCS51 b) 16, MCS51 c) 8, MCS96 d) 16, MCS96 12. 8096 has following features fill up the following,i) ____ Register file, ii) ____ I/O Ports iii) ____ architecture. a) 256 byte, five 8bit, register to register b) 256 byte, four 8bit, register to register c) 232 byte, five 8bit, register to register d) 232 byte, six 8 bit, register to register 13. How many synchronous and asynchronous modes are there in serial port of 8096?M. Krishna Kumar/IISc. Bangalore M5/V1/June 04/1 Microprocessors and Microcontrollers/ Multiple Choice Questions Architecture of Micro controllers a) 2, 2 respectively b) 3,1 respectively c) 1, 3 respectively d) 1, 2 respectively 14. In 8096 we have _____interrupt sources and _______ interrupt vectors. a) 18, 8 b) 21, 6 c) 21, 8 d) 16, 8 15. 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O linesii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv16. 8096 write-protected mode, no code can write to memory address between __. a) 2020 to 3FFFH b) 8000 to FFFFH c) 2000 to 3FFFH d) 2020 to 202FH 17. If the __ pin is ___ , then we have the option of using the ____ ROM or EPROM together with _____ memory and devices. a) EA, high, internal, external b) EA, low, internal, external c) EA, high, external, internal d) EA, low, external, internal 18. In 8096, CCB bit 3 is ____. a) write strobe mode select b) address valid strobe select c) bus width select d) Internal read control mode

19. In 8096, mode ____ of serial port are ___ modes commonly used for ____ communications. a) 1, 8bit, single processor b) 0, 7bit, multiple microcontroller c) 2, 9 bit, multiple processors d) 3, 8 bit, multiple microcontroller20. What is the function of watchdog timer?a) The watchdog Timer is an external timer that resets the system if the software fails to operate properly.b) The watchdog Timer is an internal timer that sets the system if the software fails to operate properly. c) The watchdog Timer is an internal timer that resets the system if the software fails to operate properly. d) None of them M. Krishna Kumar/IISc. Bangalore M5/V1/June 04/2 Microprocessors and Microcontrollers/ Multiple Choice Questions Architecture of Micro controllers Key: 5.1 C 5.2 D 5.3 C 5.4 D 5.5 C 5.6 A 5.7 A 5.8 A 5.9 D 5.10 C 5.11 D 5.12 C 5.13 C 5.14 C 5.15 C 5.16 C 5.17 A 5.18 B 5.19 C 5.20 C ________________________ 1. The contents of different registers are given below. Form Effective addresses fordifferent addressing modes are as follow :Offset = 5000H[AX]- 1000H, [BX]- 2000H, [SI]- 3000H, [DI]- 4000H, [BP]- 5000H,[SP]- 6000H, [CS]- 0000H, [DS]- 1000H, [SS]- 2000H, [IP]- 7000H.I. MOV AX, [5000H]a) 5000Hb) 15000Hc) 10500HII. MOV AX, [BX] [SI]a) 13000Hb) 15000Hc) 12000HIII. MOV AX, 5000H [BX] [SI]a) 20000Hb) 1A000H c) 1A00H2. The conditional branch instruction JNS performs the operations when if __a) ZF =0 b) SF=0

c) PF=0d) CF=03. Vector address of TRAPa) 24Hb) 36Hc) 24 d) 18H4. SOD pin can drive a D flip-flop?a) SOD cannot drive any flip-flops.b) SOD cannot drive D flip-flop, but can drive any other flop-flops.c) Yes, SOD can drive D flop-flop.d) No, SOD cannot drive any other flop-flops except D flop-flop.5. IDIV and DIV instructions perform the same operations for?a) Unsigned number b) Signed number c) Signed number & Unsigned number d)none of above.6. What is the output of the following codeAL=88 BCD,CL=49 BCDADDAL, CLDAAa) D7, CF=1b) 37, CF=1 c) 73, CF=1 d) 7D, CF=17. What is the output of the following codeAL= 49 BCD, BH= 72 BCDSUBAL, BHDASa) AL=D7, CF=1. b) AL=7D, CF=1.c) AL=77, CF=1 d) none of them.8. What is the output of the following codeAL= -28 decimal, BL=59 decimalIMULBLAX=? , MSB=?a) AX= F98CH, MSB=1. b) AX= 1652, MSB=1. c) BX F9C8H, MSB=1.d)BX= 1652, MSB=1.9. What is the output of the following codeAL= 00110100 BL= 00111000ADD AL, BL

AAAa) AL = 6CHb) 12H c) 12 d) C6H10. What is the output of the following codeAL=00110101BL= 39HM. Krishna Kumar/IISc. BangaloreM2/V1/June 04/1Microprocessors and Microcontrollers/Assembly language of 8086Multiple Choice QuestionsSUBAL, BLAASa) AL= 00000100, CF=1 b) BL=00000100, CF=0 c) AL=11111100 CF=1d) BL=00000100, CF=111. What is the output of the following codeCF =0,BH = 179RCLBH, 1a) CF=0, OF= 1, BH= 01100101 b) CF=1, OF=1, BH=01100110c) CF=1, OF =0, BH= 01001101 d) CF=0, OF=0, BH=0010110012. What is the output of the following codeSI=10010011 10101101, CF=0SHRSI, 1a) 37805, CF=1, OF=1 b) 18902, CF=1, OF=1c) 19820, CF=1, OF=1 c) 53708, CF=1, OF=113. What is the output of the following codeBX=23763 CL=8ROLBX, CLa) 0101110011010011, CF=0b) 1101001101011100, CF=0c) 0110100010011101, CF=1c) 1011100110001100, CF=114. What is the output of the following codePUSH ALa) Decrement SP by 2 & push a word to stack

b) Increment SP by 2 & push a word to stackc) Decrement SP by 2 & push a AL to stackd) Illegal15. What is the output of the following codeAX = 37D7H,BH = 151 decimalDIVBHa) AL = 65H, AH= 94 decimalb) AL= 5EH, AH= 101 decimalc) AH= E5H, AL= 5EHd) AL= 56H, AH= 5EH16. In 8086 microprocessor one of the following instructions is executed before anarithmetic operationa) AAM b) AADc) DASd) DAAM. Krishna Kumar/IISc. BangaloreM2/V1/June 04/2Microprocessors and Microcontrollers/Assembly language of 8086Key:2.1 (I) B (II) C (III) B2.6 B2.7 C2.12 B2.13 BM. Krishna Kumar/IISc. Bangalore2.2 B2.8 A2.14 D2.3 A2.9 C2.15 BMultiple Choice Questions2.4 C2.10 A2.16 B2.5 B2.11 B_________________________________________

1. Access time is faster fora) ROMb) SRAMc) DRAM2. In 8279 Strobed input mode, the control line goes low. The data on return lines isstrobed in the ____.a) FIFO byte by byteb) FILO byte by bytec) LIFO byte by byted) LILO byte by byte.3. ___ bit in ICW1 indicates whether the 8259A is cascade mode or not?a) LTIM=0 b) LTIM=1 c) SNGL=0 d) SNGL=14. In 8255, under the I/O mode of operation we have __ modes. Under which modewill have the following featuresi) A 5 bit control port is available.ii) Three I/O lines are available at Port C.a) 3, Mode2 b) 2, Mode 2 c) 4, Mode 3 d) 3, Mode 25. In ADC 0808 if _______ pin high enables output.a) EOCb) I/P0-I/P7 c) SOCd) OE6. In 8279, a scanned sensor matrix mode, if a sensor changes its state, the ___ linegoes ____ to interrupt the CPU.a) CS, high b) A0, highc) IRQ, high d) STB, high7. In 8279 Status Word, data is read when ________ pins are low, and write to thedisplay RAM with ____________ are low.a) A0, CS, RD & A0, WR, CS.b) CS, WR, A0 & A0, CS, RDc) A0, RD & WR, CSd) CS, RD & A0, CS.8. In 8279, the keyboard entries are debounced and stored in an _________, that isfurther accessed by the CPU to read the key codes.a) 8-bit FIFO b) 8-byte FIFOc) 16 byte FIFOd) 16 bit FIFO9. The 8279 normally provides a maximum of _____ seven segment displayinterface with CPU.a) 8 b) 16 c) 32 d) 18

10. For the most Static RAM the write pulse width should be at leasta) 10nsb) 60nsc) 300nsd) 1μs11. BURST refresh in DRAM is also called asa) Concentrated refresh b) distributed refreshc) Hidden refresh d) none12. For the most Static RAM the maximum access time is abouta) 1ns b) 10nsc) 100nsd) 1μs13. Which of the following statements on DRAM are correct?i) Page mode read operation is faster than RAS read.ii) RAS input remains active during column address strobe.iii) The row and column addresses are strobed into the internal buffers using RASand CAS inputs respectively.a) i & iiib) i & iic) all d) iii14. 8086 microprocessor is interfaced to 8253 a programmable interval timer. Themaximum number by which the clock frequency on one of the timers is dividedbya) 216 b) 28 c) 210 d) 220M. Krishna Kumar/IISc. BangaloreM3/V1/June 04/1Microprocessors and Microcontrollers/Interfacing with 8086Multiple Choice Questions15. 8086 is interfaced to two 8259s (Programmable interrupt controllers). If 8259sare in master slave configuration the number of interrupts available to the 8086microprocessor isa) 8 b) 16 c) 15 d) 64M. Krishna Kumar/IISc. BangaloreM3/V1/June 04/2Microprocessors and Microcontrollers/Interfacing with 8086Key:3.1 B3.7 A3.12 C3.2 A

3.8 B3.13 C3.3 C3.9 B3.14 AM. Krishna Kumar/IISc. Bangalore3.4 B3.10 B3.15 DMultiple Choice Questions3.5 D3.11 A3.6 C ___________________________________________________________ 1. The coprocessors operate in ______ with a processor on the same buses and withthe same instruction _______.a) Parallel, byte stream.b) Series, byte stream.c) Series, bite stream d) Parallel, bite stream.2. Why 8087 is referred to as Coprocessor?i) Because 8087 is used in parallel with main processor in a system, rather thanserving as a main processor itself.ii) Because 8087 is used in serial with main processor in a system, rather thanserving as a main processor itself.iii) Because main Microprocessor handles the general program execution and the8087 handles specialized math computations.a) i & iiib) ii & iiic) iii only.d) i only.3. 8087 connection to 8086, to enable the _________ bank of memory _______pinsare to be connected.a) Lower, BHEb) Upper, BHEc) Lower, INTd) Upper, INT.4. ___ Connection and the _______ instruction will solve the problem ofsynchronization between processor and coprocessor.

a) INT & NMI, WAITb) RQ/GT0 & RQ/GT1, FWAITc) BUSY & TEST, FWAIT d) S0 & QS0, WAIT5. _______ input is available, so that another coprocessor can be connected andfunction in _________ with the 8087..a) RQ/GT0, parallel b) RQ/GT1, parallel c) QS1 & QS0, paralleld) S0 & S1, parallel.6. In 8087, _______ many register stack are there? And of _____ registers. Theseregisters are used as _________ stack.a) 7, 40 bit, FIFO. b) 8, 60 bit, LILO. c) 8, 80 bit, LIFO d) 7, 80 bit, FILO.7. If ______ and ________ connections are made so that an error condition in 8087can interrupt to the processor.a) BHE, RQ/GT1b) BUSY, TESTc) INT, NMI d) RQ/GT0, RQ/GT18. In 8087, which instruction is used for division real reversed______.a) FDIVb) FIDIVRc) FDIVRd) FDIVRP9. Which of the following is of compare instruction in 8087?a) FTSTb) FPREMc) FPATAN d) FLDI10. In 8087 coprocessor one of the following instructions is not valida. FSINb. FPTANc. FIDIVd. FSQRT11. One of the following signals belongs to the 8087 coprocessor isa. HOLDb. BUSYc. TESTd. NMIM. Krishna Kumar/IISc. BangaloreM4/V1/June 04/1Microprocessors and Microcontrollers/CoprocessorKey:4.1 A

4.7 CMultiple Choice Questions4.2 A 4.3 B 4.4 A 4.5 B 4.6 C4.8 C 4.9 A 4.10 A 4.11 C ______________________________________________________1. The 8051 microcontroller is of ___pin package as a ______ processor.a) 30, 1byte b) 20, 1 byte c) 40, 8 bitd) 40, 8 byte2. The SP is of ___ wide register. And this may be defined anywhere in the ______.a) 8 byte, on-chip 128 byte RAM. b) 8 bit, on chip 256 byte RAM.c) 16 bit, on-chip 128 byte ROMd) 8 bit, on chip 128 byte RAM.3. After reset, SP register is initialized to address________.a) 8H b) 9H c) 7H d) 6H4. What is the address range of SFR Register bank?a) 00H-77H b) 40H-80H c) 80H-7FH d) 80H-FFH5. Which pin of port 3 is has an alternative function as write control signal forexternal data memory?a) P3.8 b) P3.3 c) P3.6 d) P3.16. What is the Address (SFR) for TCON, SCON, SBUF, PCON and PSWrespectively?a) 88H, 98H, 99H, 87H, 0D0H.b) 98H, 99H, 87H, 88H, 0D0Hc) 0D0H, 87H, 88H, 99H, 98Hd) 87H, 88H, 0D0H, 98H, 99H7. Match the following:1) TCONi) contains status information2) SBUFii) timer / counter control register.3) TMODiii) idle bit, power down bit4) PSWiv) serial data buffer for Tx and Rx.5) PCONv) timer/ counter modes of operation.a) 1->ii, 2->iv, 3->v, 4->i, 5->iii.b) 1->i, 2->v, 3->iv, 4->iii, 5->ii.c) 1->v, 2->iii, 3->ii, 4->iv, 5->i.

d) 1->iii, 2->ii, 3->i, 4->v, 5->iv.8. Which of the following is of bit operations?i) SPii) P2iii) TMODiv) SBUFv) IPa) ii, v only b) ii, iv, v only c) i, v onlyd) iii, ii only9. Serial port interrupt is generated, if ____ bits are seta) IE b) RI, IEc) IP, TId) RI, TI10. In 8051 which interrupt has highest priority?a)IE1 b)TF0 c)IE0 d)TF111. Intel 8096 is of ___ bit microcontroller family called as ______.a) 8, MCS51 b) 16, MCS51 c) 8, MCS96 d) 16, MCS9612. 8096 has following features fill up the following,i) ____ Register file,ii) ____ I/O Portsiii) ____ architecture.a) 256 byte, five 8bit, register to registerb) 256 byte, four 8bit, register to registerc) 232 byte, five 8bit, register to registerd) 232 byte, six 8 bit, register to register13. How many synchronous and asynchronous modes are there in serial port of 8096?M. Krishna Kumar/IISc. BangaloreM5/V1/June 04/1Microprocessors and Microcontrollers/Architecture of Micro controllersMultiple Choice Questionsa) 2, 2 respectively b) 3,1 respectively c) 1, 3 respectively d) 1, 2 respectively14. In 8096 we have _____interrupt sources and _______ interrupt vectors.a) 18, 8b) 21, 6c) 21, 8d) 16, 815. 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the followingi) two quasi-bidirectional I/O linesii) two output lines

iii) four input linesiv) open drain outputsa) 4, i, ivb) 6, ii, iiic) 4, i,ii,iiid) 6, i, ii, iv16. 8096 write-protected mode, no code can write to memory address between __.a) 2020 to 3FFFH b) 8000 to FFFFH c) 2000 to 3FFFH d) 2020 to 202FH17. If the __ pin is ___ , then we have the option of using the ____ ROM or EPROMtogether with _____ memory and devices.a) EA, high, internal, externalb) EA, low, internal, externalc) EA, high, external, internald) EA, low, external, internal18. In 8096, CCB bit 3 is ____.a) write strobe mode select b) address valid strobe selectc) bus width selectd) Internal read control mode19. In 8096, mode ____ of serial port are ___ modes commonly used for ____communications.a) 1, 8bit, single processorb) 0, 7bit, multiple microcontrollerc) 2, 9 bit, multiple processorsd) 3, 8 bit, multiple microcontroller20. What is the function of watchdog timer?a) The watchdog Timer is an external timer that resets the system if the softwarefails to operate properly.b) The watchdog Timer is an internal timer that sets the system if the software failsto operate properly.c) The watchdog Timer is an internal timer that resets the system if the software failsto operate properly.d) None of themM. Krishna Kumar/IISc. BangaloreM5/V1/June 04/2Microprocessors and Microcontrollers/Architecture of Micro controllersKey:5.1 C5.7 A5.13 C

5.19 CMultiple Choice Questions5.2 D 5.3 C 5.4 D 5.5 C 5.6 A5.8 A 5.9 D 5.10 C 5.11 D 5.12 C5.14 C 5.15 C 5.16 C 5.17 A 5.18 B5.20 C ___________________________________________‘1. Which of the following instruction perform as of indirect RAM to accumulator?a) MOV A, Rnb) MOV @Ri, Ac) MOV A, @Ri d) MOV Rn, A2. ACALL instruction allows specifying ______address in the instruction andcalling subroutine within ______ program memory block.a) 2byte, 3Kb) 11bit, 2K c) 9bit, 2Kd) 1byte, 3K3. Which of the following instruction perform the move accumulator to externalRAM of 16bit address?a) MOV @ DPTR, Ab) MOVX @ Ri, Ac) MOV A, @ Ri d) MOVX @ DPTR, A4. Which of the following instruction perform jump indirect relative to DPTRa) JMP A+DPTR b) JMP DPTRc) JMP @A+DPTRd) SJMP A+DPTR5. Which of the following instruction is wronga) INC DPTRb) MOV @DPTR, Ac) MOV A, @A+DPTR d) DEC DPTR6. Which of the following instruction is of logical instructions?i) CPL Aii) JC reliii) DA Aiv) ANL A, Rnv) RR Avi) CPL bita) i, vb) v, iii, I

c) iv, ii d) v, iii, ii7. What instruction performs Compare immediate to indirect and jump if not equal.a) CJNE A, #data, relb) CJNE Rn, #data, relc) CJNE @ Ri, #data, rel d) CJNE A, data, rel8. What is the Result of RR A instruction if accumulator contains 1000 0000.a) 0000 0001b) 0000 0000 c) 0100 0000 d) 0000 00109. MOV 45, #4FHMOV R0, 45HINC R0MOV @R0, #30HWhat is the location value of R0 and the content at that place?a) 45H, 4F b) 50H, 30H c) 30H, 50H d) 50H, 45H10. Which of the following is of type memory initialized Directive?i) DSii) SET iii) DWiv) DBITa) i, iiib) ii c) iii d) iv, ii11. Which of the following is not a program linking directivei) EXTRN ii) SEGMENT iii) NAMEiv) PUBLIC v) USINGa) iv, vb) ii, iii c) i, iii d) ii, v12. SP of 8051 is of ___ wide and it is loaded with the default value of ___ after reset.a) 2 byte, 08Hb) 8 bit, 07H c) 1 byte, 09H d) 8 bit, 06H13. Which of the following instruction is used to set bit port directly?a) SET P1.0b) MOV P1.0, bitc) SETB P1.0 d) JB P1.0, bit14. MOV A, #56HMOV R1, #50HM. Krishna Kumar/IISc. BangaloreM6/V1/June 04/1Microprocessors and Microcontrollers/Assembly language of 8051MOV 50H, # 45HXCHD A, @R1What is the result at A, R1?

a) 56H, 45Hb) 45H, 50H c) 50H, 56HM. Krishna Kumar/IISc. BangaloreMultiple Choice Questionsd) 45H, 56HM6/V1/June 04/2Microprocessors and Microcontrollers/Assembly language of 8051Key:6.1 C6.7 C6.13 CMultiple Choice Questions6.2 B 6.3 D 6.4 C 6.5 B 6.6 A6.8 C 6.9 B 6.10 C 6.11 D 6.12 B6.14 D _________________________________________________________________ Microprocessors and Microcontrollers/Interfacing with 8051Multiple Choice Questions1. In 8051 an external interrupt 1 vector address is of ________ and causes of interruptif ____.a) 000BH, a high to low transition on pin INT1b) 001BH, a low to high transition on pin INT1c) 0013H, a high to low transition on pin INT1d) 0023H, a low to high transition on pin INT12. Serial port vector address is of _______. And causes an interrupt when ________.a) 0013H, either TI or RI flag is setb) 0023H, either TI or RI flag is resetc) 0013H, either TI or RI flag is resetd) 0023H, either TI or RI flag is set3. In serial communication modes, mode 1 the Baud rate =a) BR=2SMOD/32 * (Timer 0 over flow rate)b) BR=2SMOD/16 * (Timer 1 over flow rate)c) BR=2SMOD/16 * (Timer 0 over flow rate)d) BR=2SMOD/32 * (Timer 1 over flow rate)4. In modes 2 and 3, if _____ bit of SCON bit is set will causes enable multiprocessorcommunication and is of ____ bit address.a) SM1, 9EH b) TB8 , 9CH c) SM2 , 9DH d) SM0, 9FH5. Interfacing LCD with 89C51 _____ data lines are used along with the _____ signals.

a) 6, RS, RW b) 5, RW, EN c) 8, RS, EN, RWd) 9, RS, EN, RW6. Resolution of ADC is defined asa) 1/ (2N – 1) b) 2N-1 c) 1/ (2N-1) d) 2N-17. In microcontroller and LCD interface which line will instruct the LCD thatmicrocontroller is sending data?a) DB0 b) RW c) EN d) RS8. Which bit of TMOD will exactly configure timer / counter as a timer or counter.i) TMOD.6 of C/T for timer 1ii) TMOD.6 of C/T for timer 0iii) TMOD.2 of C/T for timer 0iv) TMOD.2 of C/T for timer 1a) i, ii b) ii, iv c) i, iii d) iii, ivM. Krishna Kumar/IISc. BangaloreM7/V1/June 04/1Microprocessors and Microcontrollers/Interfacing with 8051Multiple Choice QuestionsKey:7.1 C 7.2 D 7.3 D 7.4 C 7.5 C 7.6 C 7.7 C 7.8 C ________________________________________________________________ 1. Segmentation unit allows segments of _____ size at maximum.a) 4Gbytesb) 6Mbytes c) 4Mbytes d) 6Gbytes2. If ______input pin of 80386 if activated, allows address pipelining during 80386bus cycles.a) BS16b) NA c) PEREQd) ADS3. Virtual Mode Flag bit can be set using ____ instruction or any task switchoperation only in the _____ modea) IRET, Virtual b) POPF, Real c) IRET, protected d) POPF, protected4. The interrupt vector table of 80386 has been allocated ______ space starting from_______ to _______.a) 1Kbyte, 00000H, 003FFHb) 2Kbyte, 10000H, 004FFHc) 3Kbyte, 01000H, 007FFHd) 4Kbyte, 01000H, 009FFH

5. The ___ bit decides whether it is a system descriptor or code/data segmentdescriptora) Pb) S c) D d) G6. A new signal group on the 80486 is the ______.a) PARITYb) DP0-DP3 c) PCHKd) all7. _____is used to control the cache with two new control bits not present in the80386 microprocessor. What are the bits used to control the 8K byte cache?a) CR0, CD, NW b) CR0, NW, PWTc) Control Register Zero, PWT, PCDd) none8. To prevent another master from taking over the bus during a critical operation, the486 can assert its _____signal.a) LOCK# or PLOCK# b) HOLD or BOFF c) HLDAd) HOLD9. 80386 support which type of descriptor table from the following?a) TDSb) ADSc) GDSd) MDS10. 80386 support overall ___ addressing modes to facilitate efficient execution ofhigher level language programs.a) 9b) 10 c) 11 d) 12M. Krishna Kumar/IISc. BangaloreM8/V1/June 04/1Microprocessors and Microcontrollers/High end processorsKey:8.1 A8.7 AMultiple Choice Questions8.2 B 8.3 C 8.4 A 8.5 B 8.6 D8.8 A 8.9 C 8.10 C _______________________________________________________

Microprocessor And Assembly Language MCQ 02

1) Who is the brain of computer: a. ALUb. CPUc. MUd. None of these 2) Which technology using the microprocessor is fabricated on a single chip: a. POSb. MOSc. ALUd. ABM 3) MOS stands for:a. Metal oxide semiconductorb. Memory oxide semiconductorc. Metal oxide selectd. None of these4) In which form CPU provide output: a. Computer signalsb. Digital signalsc. Metal signalsd. None of these 5) How many types of microprocessor comprises: a. 3b. 6c. 9d. 4 6) Which is the microprocessor comprises: a. Register sectionb. One or more ALUc. Control unitd. All of these

7) The register section is related to______ of the computer: a. Processingb. ALUc. Main memoryd. None of these 8) What is the store by register: a. datab. operandsc. memoryd. None of these 9) How many types of classification of processor based on register section: a. 1b. 2c. 3d. 4 10) In Microprocessor one of the operands holds a special register called: a. Calculatorb. Dedicatedc. Accumulatord. None of these 11) Accumulator based microprocessor example are: a. Intel 8085b. Motorola 6809c. A and Bd. None of these 12) A set of register which contain are: a. data b. memory addresses

c. resultd. all of these 13) How many types are primarily register: a. 1b. 2c. 3d. 4 14) There are primarily two types of register: a. general purpose registerb. dedicated registerc. A and Bd. none of these 15) Which register is a temporary storage location: a. general purpose registerb. dedicated registerc. A and Bd. none of these 16) How many parts of dedicated register: a. 2b. 4c. 5d. 6 17) Name of typical dedicated register is: a. PCb. IRc. SPd. All of these 18) PC stands for:

a. Program counterb. Points counterc. Paragraph counterd. Paint counter 19) IR stands for: a. Intel registerb. In counter registerc. Index registerd. Instruction register 20) SP stands for: a. Status pointerb. Stack pointerc. a and bd. None of these 21) The act of acquiring an instruction is referred as the____ the instruction: a. Fetchingb. Fetch cyclec. Both a and bd. None of these 22) How many bit of instruction on our simple computer consist of one____: a. 2-bitb. 6-bitc. 12-bitd. None of these 23) How many parts of single address computer instruction : a. 1b. 2c. 3d. 4

24) Single address computer instruction has two parts: a. The operation codeb. The operandc. A and Bd. None of these 25) LA stands for: a. Load accumulatorb. Least accumulatorc. Last accumulatord. None of these 26) ED stands for: a. Enable MRDb. Enable MDRc. Both a and bd. None of these 27) LM stands for: a. Least MARb. Load MARc. Least MRAd. Load MRA 28) Causing a flag to became 0 is called: a. Clearing a flagb. Case a flagc. Both a and bd. None of these 29) Which are the flags of status register: a. Over flow flagb. Carry flagc. Half carry flag

d. Zero flage. Interrupt flagf. Negative flagg. All of these 30) The carry is operand by:a. C31) The sign is operand by:a. S32) The zero is operand by:a. Z33) The overflow is operand by:a. O34) _____ is the condition: a. CDb. IRc. Both a and bd. None of these 35) ____ causes the address of the next microprocessor to be obtained from the memory: a. CRJAb. ROMc. MAPd. HLT 36) _________ Stores the instruction currently being executed: a. Instruction registerb. Current registerc. Both a and bd. None of these 37) In which register instruction is decoded prepared and ultimately executed: a. Instruction registerb. Current registerc. Both a and b

d. None of these 38) The status register is also called the____: a. Condition code registerb. Flag registerc. A and Bd. None of these 39) BCD stands for: a. Binary coded decimalb. Binary coded decodedc. Both a & bd. none of these 40) Which is used to store critical pieces of data during subroutines and interrupts: a. Stackb. Queuec. Accumulatord. Data register 41) The area of memory with addresses near zero are called: a. High memoryb. Mid memoryc. Memoryd. Low memory 42) The point where control returns after a subprogram is completed is known as the :a. Return addressb. Main Addressc. Program Addressd. Current Address43) The subprogram finish the return instruction recovers the return address from the:a. Queueb. Stackc. Program counterd. Pointer

44) The processor uses the stack to keep track of where the items are stored on it this by using the:a. Stack pointer registerb. Queue pointer registerc. Both a & bd. None of these45) Which point to the ___ of the stack:a. TOPb. STARTc. MIDd. None of these46) Stack words on:a. LILOb. LIFOc. FIFOd. None of these47) Which is the basic stack operation:a. PUSHb. POPc. BOTH A and Bd. None of these48) SP stand for:a. Stack pointerb. Stack popc. Stack pushd. None of these49) How many bit stored by status register:a. 1 bitb. 4 bitc. 6 bitd. 8 bit50) Which is the important part of a combinational logic block:a. Index registerb. Barrel shifterc. Both a & bd. None of these 51) The structure of the stack is _______ type structure:a. First in last out

b. Last in last outc. Both a & bd. None of these52) The data in the stack is called:a. Pushing datab. Pushedc. Pullingd. None of these53) The CU is designed by using which techniques:a. HARDWIRED CONTROLSb. MICROPROGRAMINGc. NANOPROGRAMINGd. ALL OF THESE54) The 16 bit register is separated into groups of 4 bit where each groups is called:a. BCDb. Nibblec. Half byted. None of these55) A nibble can be represented in the from of:a. Octal digitb. Decimalc. Hexadecimald. None of these56) The left side of any binary number is called:a. Least significant digitb. Most significant digitc. Medium significant digitd. low significant digit57) MSD stands for:a. Least significant digitb. Most significant digitc. Medium significant digitd. low significant digit58) _____ a subsystem that transfer data between computer components inside a computer or between computer:a. Chipb. Registerc. Processord. Bus59) Which is called superhighway:

a. Processorb. Multiplexerc. Backbone busd. None of these60) The external system bus architecture is created using from ______ architecture:a. Pascalb. Dennis Ritchiec. Charles Babbaged. Von Neumann61) The network of wires or electronic path ways on mother board back side:a. PCBb. BUSc. BOTH A and Bd. None of these62) Which Bus connects CPU & level 2 cache:a. Rear side busb. Front side busc. Memory side busd. None of these63) Which bus carry addresses:a. System busb. Address busc. Control busd. Data bus64) A 16 bit address bus can generate___ addresses:a. 32767b. 25652c. 65536d. none of these65) The processor 80386/80486 and the Pentium processor uses _____ bits address bus:a. 16b. 32c. 36d. 6466) CPU can read & write data by using :a. Control busb. Data busc. Address busd. None of these

67) Which bus transfer singles from the CPU to external device and others that carry singles from external device to the CPU:a. Control busb. Data busc. Address busd. None of these68) Which is not the control bus signal:a. READb. WRITEc. RESETd. None of these69) When memory read or I/O read are active data is to the processor :a. Inputb. Outputc. Processord. None of these70) When memory write or I/O read are active data is from the processor:a. Inputb. Outputc. Processord. None of these71) Using 12 binary digits how many unique house addresses would be possible:a. 28=256b. 212=4096c. 216=65536d. None of these72) PROM stands for:a. Programmable read-only memory73) EPROM stands for:a. Erasable Programmable read-only memory74) Each memory location has:a. Addressb. Contentsc. Both A and Bd. None of these75) Which is the type of microcomputer memory:a. Processor memoryb. Primary memoryc. Secondary memoryd. All of these

76) Secondary memory can store____:a. Program store codeb. Compilerc. Operating systemd. All of these77) Secondary memory is also called____:a. Auxiliaryb. Backup storec. Both A and Bd. None of these78) Customized ROMS are called:a. Mask ROMb. Flash ROMc. EPROMd. None of these79) The ram which is created using bipolar transistors is called:a. Dynamic RAMb. Static RAMc. Permanent RAMd. DDR RAM80) Which type of RAM needs regular referred:a. Dynamic RAMb. Static RAMc. Permanent RAMd. SD RAM81) Which RAM is created using MOS transistors:a. Dynamic RAMb. Static RAMc. Permanent RAMd. SD RAM82) Which latch is mostly used creating memory register:a. SR-Latchb. JK-Latchc. D-Latchd. T-Latch83) Which statement is false about WR signal:a. WR signal controls the input bufferb. The bar over WR means that this is an active low signalc. The bar over WR means that this is an active high signald. If WR is 0 then the input data reaches the latch input

84) Which technique is used for main memory array design:a. Linear decodingb. Fully decodingc. Both A and Bd. None of these85) CS stands for:a. Cable selectb. Chip selectc. Control selectd. Cable system86) WE stands for:a. Write enableb. Wrote enablec. Write envyd. None of these87) When CS _____ the chip is not selected at all hence D7 to D0 are driven to high impedance state:a. Highb. Lowc. Mediumd. Stand by88) The capacity of this chip is 1KB they are organized in the form of 1024 words with 8 bit word The what is the site of address bus:a. 8 bitb. 10 bitc. 12 bitd. 16 bit89) Which storage technique dose not decoding circuit:a. Linear decodingb. Fully decodingc. Partiallyd. None of these90) In linear decoding address bus of 16-bit wide can connect only ____ of RAM.a. 16 KBb. 6KBc. 12KBd. 64KB91) Which statement is wrong according to linear decoding :a. Address map is not contiguous.b. Confects occur if two of the select lines become active at the same time

c. If all unused address lines are not used as chip selectors then these unused lines become don’t caresd. None of these92) The problem of bus confect and sparse address distribution are eliminated by the use of ______ address technique:a. Fully decodingb. Half decodingc. Both a & bd. None of these93) A microprocessor retries instructions from :a. Control memoryb. Cache memoryc. Main memoryd. Virtual memory94) Which register is used to communicate with memory:a. MARb. MDRc. Both A and Bd. None of these95) SAM stands for:a. Simple architecture machineb. Solved architecture machinec. Both a & bd. None of these96) MAR stands for:a. Memory address registerb. Memory address recodec. Micro address registerd. None of these97) MDR stands for:a. Memory data registerb. Memory data recodec. Micro data registerd. None of these98) VAM stands for:a. Valid memory addressb. Virtual memory addressc. Variable memory addressd. None of these99) Which microprocessor to read an item from memory:

a. VAMb. SAMc. MOCd. None of these100) Which bus plays a crucial role in I/O:a. System busb. Control busc. Address busd. Both A and B101) Which register is connected to the memory by way of the address bus:a. MARb. MDRc. SAMd. None of these102) How many bit of MAR register:a. 8-bitb. 16-bitc. 32-bitd. 64-bit103) MOC stands for:a. Memory operation complexb. Micro operation complexc. Memory operation completed. None of these104) Which are the READ operation can in simple steps:a. Addressb. Datac. Controld. All of these105) The upper red arrow show that CPU sends out the control signals____ and _____ indicate the data is read from the memory:a. Memory requestb. Readc. Both A and Bd. None of these106) The information is transferred from the_____ and ____ specified register:a. MDRb. CPUc. Both A and Bd. None of these

107) The information on the data bus is transferred to the ______register:a. MOCb. MDRc. VAMd. CPU108) The lower red curvy arrow show that CPU places the address extracted from the memory location on the_____:a. Address busb. System busc. Control busd. Data bus109) DMA stands for:a. Direct memory accessb. Direct memory allocationc. Data memory accessd. Data memory allocation110) DMA stands for:a. Dynamic memory accessb. Data memory accessc. Direct memory accessd. Both B and C111) CRT stands for:a. Cathode ray tubeb. Compared ray tubec. Command ray tubed. None of these112) The CPU sends out a ____ signal to indicate that valid data is available on the data bus:a. Readb. Writec. Both A and Bd. None of these113) The ____ place the data from a register onto the data bus:a. CPUb. ALUc. Both A and Bd. None of these114) The CPU removes the ___ signal to complete the memory write operation:a. Readb. Write

c. Both A and Bd. None of these115) The value memvar must be transferred to the ___:a. Computerb. CPUc. Both A and Bd. None of these116) The microcomputer system by using the ____device interface:a. Inputb. Outputc. Both A and Bd. None of these117) How bit microprocessor inexpensive a separate interface is provided with I/O device:a. 2 bitb. 4 bitc. 8 bitd. 32 bit118) How many ways of transferring data between the microprocessor and a physical I/O device:a. 2b. 3c. 4d. 5119) The standard I/O is also called:a. Isolated I/Ob. Parallel I/Oc. both a and bd. none of these120) standard I/O uses which control pin on the micro processor:a. IO/M121) A___ on this pin indicates a memory operation:a. Lowb. Highc. Mediumd. None of these122) The external device is connected to a pin called the ______ pin on the processor chip.a. Interruptb. Transfer

c. Bothd. None of these123) The DMA controllers are special hardware embedded into the chip in modern integrate processor that ____and_____ to the system;a. Data transferb. arbitrate accessc. Both A and Bd. None of these124) The CPU completes yields control of the bus to the DMA controller via:a. DMA acknowledge signalb. DMA integrated signalc. DMA implicitly signald. None of these125) The mode of DMA are:a. Single transferb. Block transferc. Burst –block transferd. Repeated single transfere. Repeated–block transferf. Repeated Burst –block transferg. All of these __________________________________________________________

Set - 1 1. UNIVAC is

a. Universal Automatic Computerb. Universal Array Computerc. Unique Automatic Computerd. Unvalued Automatic Computer

2. CD-ROM stands for

a. Compactable Read Only Memoryb. Compact Data Read Only Memoryc. Compactable Disk Read Only Memoryd. Compact Disk Read Only Memory

3. ALU is

a. Arithmetic Logic Unitb. Array Logic Unitc. Application Logic Unitd. None of above

4. VGA is

a. Video Graphics Arrayb. Visual Graphics Arrayc. Volatile Graphics Arrayd. Video Graphics Adapter

5. IBM 1401 is

a. First Generation Computerb. Second Generation Computerc. Third Generation Computerd. Fourth Generation Computer

6. MSI stands for

a. Medium Scale Integrated Circuitsb. Medium System Integrated Circuitsc. Medium Scale Intelligent Circuitd. Medium System Intelligent Circuit

7. The capacity of 3.5 inch floppy disk is

a. 1.40 MBb. 1.44 GBc. 1.40 GBd. 1.44 MB

8. The first computer introduced in Nepal was

a. IBM 1400b. IBM 1401c. IBM 1402d. IBM1402

9. WAN stands for

a. Wap Area Networkb. Wide Area Networkc. Wide Array Netd. Wireless Area Network

10. MICR stands for

a. Magnetic Ink Character Readerb. Magnetic Ink Code Readerc. Magnetic Ink Cases Readerd. None

1. UNIVAC isCorrect Answer: a. Universal Automatic Computer Explanation: There are no computers with the name as in other options. UNIVAC was the first general purpose electronic digital computer designed for commercial use, produced by Universal Accounting Company of John Mauchly and J.P.Eckert in 1951. 2. CD-ROM stands forCorrect Answer: d. Compact Disk Read Only Memory Explanation: There are no objects with the name as in other options. CD-ROM is a non-volatile optical data storage medium using the same physical format as audio compact disk, readable by a computer with a CD-ROM drive. The standard 12 cm diameter CD-ROM store about 660 megabytes. 3. ALU isCorrect Answer: a. Arithmetic Logic Unit Explanation: ALU is a unit in Central Processing Unit in a computer system that is responsible for arithmetic calculations and logical operations. Apart from ALU, the CPU contains MU (Memory Unit) and CU (Control Unit). 4. VGA isCorrect Answer: a. Video Graphics Array Explanation: VGA is a type of Graphics Adapter. Graphic Adapter is an electronic board that controls the display of a monitor. This device helps the motherboard to work with the monitor and in VGA and SVGA the last letter ‘A’ stands for ‘Array’ whereas in MDA, CGA, MCGA the last letter ‘A’ stands for ‘Adapter’. 5. IBM 1401 isCorrect Answer: b. Second Generation Computer

Explanation: IBM 1401 is a Second Generation Computer and is the first computer to enter Nepal in 2028 BS for census. Government of Nepal had brought this computer on rent and later purchased for data processing in Bureau of Statistics. After this computer, another ICL 2950/10, a British computer, was purchased by the fund of UNDP and UNFPA for the census of 2038 BS is second computer in Nepal. 6. MSI stands forCorrect Answer: a. Medium Scale Integrated Circuits Explanation: After the invention of IC chips the development of computers plunged into next phase. Small Scale Integration and Medium Scale Integration (SSI and MSI) were used in third generation of computers and Large Scale Integration and Very Large Scale Integration (LSI and VLSI) are being used in fourth generation of computers. People are now expecting ULSI (Ultra Large Scale Integration) Circuits to be used for fifth generation computers. 7. The capacity of 3.5 inch floppy disk isCorrect Answer: d. 1.44 MB Explanation: Microfloppy disks (3.5 inch) if it is high density (MF2HD) can store 1.44 MB and if it is low density (MF2DD), it can store 720 KB. Mini Floppy disks (5.25 inch) if it is high density (MD2HD) can store 1.2 MB and low density (MD2DD) stores 360 KB of data. 8. The first computer introduced in Nepal wasCorrect Answer: b. IBM 1401 Explanation: IBM 1401, a second generation computer was brought in Nepal by the Government of Nepal paying One Lakh and twenty five thousands per month to use in the census in 2028 B.S. Before this computer, Nepal was using a calculating device called Facit for statistical tasks. 9. WAN stands forCorrect Answer: b. Wide Area Network Explanation: There are three different classes of computer network namely, Local Area Network (LAN) that covers a small geographical area such as a room, a building or a compound; Metropolitan Area Network (MAN) that has a citywide coverage; and Wide Area Network (WAN) that covers the whole globe or beyond

the globe. 10. MICR stands forCorrect Answer: a. Magnetic Ink Character Reader Explanation: MICR (Magnetic Ink Character Reader) is kind of scanner that can scan and identify the writing of magnetic ink. This device is used in banks to verify signatures in Checks.________________________________________________

Set - 2 1. EBCDIC stands fora. Extended Binary Coded Decimal Interchange Codeb. Extended Bit Code Decimal Interchange Codec. Extended Bit Case Decimal Interchange Coded. Extended Binary Case Decimal Interchange Code 2. BCD isa. Binary Coded Decimalb. Bit Coded Decimalc. Binary Coded Digitd. Bit Coded Digit 3. ASCII stands fora. American Stable Code for International Interchangeb. American Standard Case for Institutional Interchangec. American Standard Code for Information Interchanged. American Standard Code for Interchange Information 4. Which of the following is first generation of computera. EDSACb. IBM-1401c. CDC-1604d. ICL-2900 5. Chief component of first generation computer wasa. Transistorsb. Vacuum Tubes and Valves

c. Integrated Circuitsd. None of above 6. FORTRAN isa. File Translationb. Format Translationc. Formula Translationd. Floppy Translation 7. EEPROM stand fora. Electrically Erasable Programmable Read Only Memoryb. Easily Erasable Programmable Read Only Memoryc. Electronic Erasable Programmable Read Only Memoryd. None of the above 8. Second Generation computers were developed duringa. 1949 to 1955b. 1956 to 1965c. 1965 to 1970d. 1970 to 1990 Correct Answer: 1956 to 1965Explanation: Second generation computers used transistors as their main electronic component. Transistor was invented by Bell Lab Scientists John Burdeen, Walter Brattain and William Shockley in 1947 and won the Nobel Prize in 1956 but it was not used in computers till 1956. The second generation continued until the implementation of IC chips invented by Jack Kilby in Texas Instruments in 1958. 9. The computer size was very large in a. First Generationb. Second Generationc. Third Generationd. Fourth Generation 10. Microprocessors as switching devices are for which generation computersa. First Generationb. Second Generation

c. Third Generationd. Fourth Generation 1. EBCDIC stands forCorrect Answer: a. Extended Binary Coded Decimal Interchange Code Explanation: EBCDIC is an 8-bit binary code for larger IBMs primarily mainframes in which each byte represent one alphanumeric character or two decimal digits. 256 characters can be coded using EBCDIC. 2. BCD isCorrect Answer: a. Binary Coded Decimal Explanation: BCD is a binary coded notation in which each of the decimal digits is expressed as a 8-bit binary numeral. For example in binary coded decimal notation 12 is 0001 0010 as opposed to 1100 in pure binary. 3. ASCII stands forCorrect Answer: c. American Standard Code for Information Interchange Explanation: ASCII is a code which converts characters – letters, digits, punctuations and control characters such as Alt, Tab etc – into numeral form. ASCII code is used to represent data internally in micro-computers. ASCII codes are 7 bits and can represent 0 to 127 and extended ASCII are 8 bits that represents 0 to 255. 4. Which of the following is first generation of computerCorrect Answer: a. EDSAC Explanation: IBM-1401, CDC-1604 is second generation computer. ICL-2900 is a fourth generation computer. EDSAC is important in the development of computer since it was the first computer to use John von. Neumann’s Stored Program Concept. It used 3000 vacuum tubes and computers with vacuum tubes are of first generation computers. 5. Chief component of first generation computer wasCorrect Answer: b. Vacuum Tubes and Valves Explanation: Transistors were used for second generation computers and integrated circuits in third generation. First generation computers used vacuum tubes and valves as their main electronic component. Vacuum Tubes were invented by Lee DeForest in 1908.

6. FORTRAN isCorrect Answer: c. Formula Translation Explanation: FORTRAN (Formula Translation) is one of the earlier High Level programming languages used to write scientific applications. It was developed by IBM in 1956. 7. EEPROM stand forCorrect Answer: a. Electrically Erasable Programmable Read Only Memory Explanation: There are three types of ROM namely, PROM, EPROM and EEPROM. PROM can’t be reprogrammed, EPROM can be erased by exposing it in high intensity ultraviolet light and EEPROM can be erased and reprogrammed electrically. It is not needed to be removed from the computer to be modified. 8. Second Generation computers were developed duringCorrect Answer: 1956 to 1965 Explanation: Second generation computers used transistors as their main electronic component. Transistor was invented by Bell Lab Scientists John Burdeen, Walter Brattain and William Shockley in 1947 and won the Nobel Prize in 1956 but it was not used in computers till 1956. The second generation continued until the implementation of IC chips invented by Jack Kilby in Texas Instruments in 1958. 9. The computer size was very large inCorrect Answer: a. First Generation Explanation: It is obvious that computers developed with more power, reliability, speed and smaller sizes due to the enhancement of technology. First generation computers used 1000s of vacuum tubes that required lot of space made them gigantic in size. Single transistor could replace 1000 vacuum tubes and a single IC chip replaced 1000s of transistors made computers smaller and more speedy. 10. Microprocessors as switching devices are for which generation computersCorrect Answer: Fourth Generation Explanation: Microprocessors further revolutionized the development of computers. Personal microcomputers were possible due to the microprocessors. The first microprocessor called Intel 4004 was developed by American Intel Corporation in 1971. Microprocessors are used in the computers of fourth generation computers._______________________________________________

Set - 3 1. Which generation of computer is still under developmenta. Fourth Generationb. Fifth Generationc. Sixth Generationd. Seventh Generation 2. Artificial Intelligence is associated with which generation?a. First Generationb. Second Generationc. Fifth Generationd. Sixth Generation 3. Which operation is not performed by computera. Inputtingb. Processingc. Controllingd. Understanding 4. Fifth generation computer is also known asa. Knowledge information processing systemb. Very large scale integration (VLSI)c. Both of aboved. None of above 5. Central Processing Unit is combination of a. Control and storageb. Control and output unitc. Arithmetic logic and input unitd. Arithmetic logic and control unit 6. The brain of any computer system isa. Control Unitb. Arithmetic Logic Unitc. Central Processing Unitd. Storage Unit 7. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.a. Arithmetic and Logic Unit

b. Control Unitc. Both of aboved. None of above 8. Analog computer works on the supply of a. Continuous electrical pulsesb. Electrical pulses but not continuousc. Magnetic strengthd. None of the above 9. Digital devices area. Digital Clockb. Automobile speed meterc. Clock with a dial and two handsd. All of them 10. The computer that process both analog and digital is calleda. Analog computerb. Digital computerc. Hybrid computerd. Mainframe computer Answers: 1. Which generation of computer is still under developmentCorrect Answer: b. Fifth Generation Explanation: Today’s computer fall under the fourth generation computers that uses the LSI and VLSI Integrated Circuits. For fifth generation computers it is expected for Ultra Large Scale Integrated Circuits (ULSI). The study for using Gallium Arsenide instead of silicon chips is underway. Electrons can travel 5 times faster in Gallium Arsenide compared to the silicon. Similarly, genetically engineered protein molecules are being tried for processors. Fifth generation computers are expected to have artificial intelligence, ability to use natural language. 2. Artificial Intelligence is associated with which generation?Correct Answer: c. Fifth Generation Explanation: ‘A computer is a slave in a box’. This is a saying due to the lack of intelligence in computer in spite of their speed, accuracy, diligence and reliability. A computer can only perform instructed task in the way already programmed. Thus, scientists are trying to develop artificial intelligence in computers so that they can think

and make decisions themselves. This is expected for fifth generation computers.3. Which operation is not performed by computerCorrect Answer: d. Understanding Explanation: Computers can’t understand since they don’t have intelligence. Let’s hope in fifth generation they will achieve artificial intelligence and be able to understand. 4. Fifth generation computer is also known asCorrect Answer: a. Knowledge information processing system Explanation: Fifth Generation computers will have artificial intelligence and will be able to understand making knowledge information processing system possible, 5. Central Processing Unit is combination ofCorrect Answer: d. Arithmetic logic and control unit Explanation: Arithmetic logic and control unit along with memory unit forms a complete central processing unit and central processing unit along with input/output unit forms a computer system. 6. The brain of any computer system isCorrect Answer: c. Central Processing Unit Explanation: Control unit or arithmetic logical unit alone can not represent the function of brain to compare with neither does storage unit only. Central Processing Unit is the combination of control, arithmetic logic and memory units thus can be compared with brain that controls the body, processes its functions and remembers. 7. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.Correct Answer: a. Arithmetic and Logic Unit Explanation: Logical sub-unit of ALU performs all the comparisons such as less than equal to or greater than. Arithmetic sub-unit of ALU performs calculations such as addition, subtraction and so on. 8. Analog computer works on the supply ofCorrect Answer: a. Continuous electrical pulses

Explanation: Analog computers works on the continuous electrical pulses and digital computers work on the discrete electrical pulses. Analog computers need to process physical quantities such as temperature, pressure, speed etc. 9. Digital devices areCorrect Answer: a. Digital Clock. Explanation: Automobile speed meter and clock with a dial and two hands are analog devices. Speed meter works on speed of wheel and the later works on tension of dialed spring. 10. The computer that process both analog and digital is calledCorrect Answer c. Hybrid Computer Explanation: Analog, Digital and Hybrid are the three classes of computers based on the work or principle on which computer work. Hybrid computers can perform both the tasks of analog computers as well as hybrid computers. These computers are used in aircraft, hospitals where measuring physical quantities and converting them into digital data to analyze is required.__________________________________________________

Set - 4 1. Which statement is valid about magnetic tape?a. It is a plastic ribbonb. It is coated on both sides with iron oxidec. It can be erased and reusedd. All of above 2. The data recording format in most of the modern magnetic tape isa. 7-bit ASCIIb. 7-bit EBCDICc. 8-bit ASCIId. 8-bit EBCDIC 3. Which of the following is associated with error detector?a. Odd parity bitb. Even parity bitc. Both of the aboved. None of above

4. Tape speed is measured ina. Feet per secondb. Inch per secondc. Meter per secondd. Centimeter per second 5. Magnetic disks are the most popular medium fora. Direct accessb. Sequential accessc. Both of aboved. None of above 6. Storage capacity of magnetic disk depends ona. tracks per inch of surfaceb. bits per inch of tracksc. disk pack in disk surfaced. All of above 7. Reading data is performed in magnetic disk bya. Read/write leadsb. Sectorsc. Trackd. Lower surface 8. Access time isa. seek time + latency timeb. seek timec. seek time – latency timed. latency time 9. Seek time isa. time to position the head over proper trackb. time to position the head over proper sectorc. time to position the head over proper cylinderd. none of above 10. Latency time isa. Time to spin the needed data under headb. Time to spin the needed data under trackc. Time to spin data under sectord. All of above

11. Floppy disks are available ina. Single side single densityb. Single side double densityc. Both of aboved. None of above 12. Floppy disks typically in diametera. 3”b. 5.25”c. 8”d. All of above 13. Hard disk is coated in both side abovea. Magnetic metallic oxideb. Optical metallic oxidec. Carbon layerd. All of the above 14. Binary circuit elements havea. One stable stateb. Two stable statec. Three stable stated. None of above 15. Which statement is valid?a. 1KB = 1024 bytesb. 1 MB=2048 bytesc. 1 MB = 1000 kilobytesd. 1 KB = 1000 bytes 16. Which statement is valid about computer program?a. It is understood by a computerb. It is understood by programmerc. It is understood userd. Both of above 17. Software in computera. Enhances the capabilities of the hardware machineb. Increase the speed of central processing unitc. Both of aboved. None of above 18. Which of the following is not computer language?

a. High level languageb. Medium level languagec. Low level languaged. All of the above 19. Which language is directly understood by the computer without translation program?a. Machine languageb. Assembly languagec. High level languaged. None of above 20. Instruction in computer languages consists ofa. OPCODEb. OPERANDc. Both of aboved. None of above 21. Machine language isa. Machine dependentb. Difficult to programc. Error proned. All of above1. Which statement is valid about magnetic tape?a. It is a plastic ribbon 2. The data recording format in most of the modern magnetic tape isd. 8-bit EBCDIC 3. Which of the following is associated with error detector?c. Both of the above 4. Tape speed is measured inb. Inch per second 5. Magnetic disks are the most popular medium forc. Both of above 6. Storage capacity of magnetic disk depends ond. All of above 7. Reading data is performed in magnetic disk bya. Read/write leads

8. Access time isa. seek time + latency time 9. Seek time isa. time to position the head over proper track 10. Latency time isa. Time to spin the needed data under head 11. Floppy disks are available inc. Both of above 12. Floppy disks typically in diameterd. All of above 13. Hard disk is coated in both side abovea. Magnetic metallic oxide 14. Binary circuit elements haveb. Two stable state 15. Which statement is valid?a. 1KB = 1024 bytes 16. Which statement is valid about computer program?d. Both of above 17. Software in computera. Enhances the capabilities of the hardware machine 18. Which of the following is not computer language?b. Medium level language 19. Which language is directly understood by the computer without translation program?a. Machine language 20. Instruction in computer languages consists ofc. Both of above

21. Machine language isd. All of above_____________________________________________

Set - 5 1. Mnemonic a memory trick is used in which of the following language?a. Machine languageb. Assembly languagec. High level languaged. None of above 2. The translator program used in assembly language is calleda. Compilerb. Interpreterc. Assemblerd. Translator 3. Easily reloctable language isa. Machine languageb. Assembly languagec. High level languaged. Medium level language 4. Which of the following is called low level languages?a. Machine languageb. Assembly languagec. Both of the aboved. None of above 5. which of the following is problem oriented language?a. High level languageb. Machine languagec. Assembly languaged. Low level language 6. A compiler is a translating program which

a. Translates instruction of a high level language into machine languageb. Translates entire source program into machine language programc. It is not involved in program’s executiond. All of above 7. Which of the following is machine independence program?a. High level languageb. Low level languagec. Assembly languaged. Machine language 8. Which statement is valid about interpreter?a. It translates one instruction at a timeb. Object code is saved for future usec. Repeated interpretation is not necessaryd. All of above 9. Which is the limitation of high level language?a. Lower efficiencyb. Machine dependencec. machine level codingd. None of above 10. High level language is also calleda. Problem oriented languageb. Business oriented languagec. Mathematically oriented languaged. All of the above 11. A computer programmera. Does all the thinking for a computerb. Can enter input data quicklyc. Can operate all types of computer equipmentsd. Can draw only flowchart 12. CD-ROM is aa. Semiconductor memoryb. Memory register

c. Magnetic memoryd. None of above 13. Which of the following is not a primary storage device?a. Magnetic tapeb. Magnetic diskc. Optical diskd. None of above 14. A name or number used to identify a storage location devices?a. A byteb. A recordc. An addressd. All of above 15. Which of the following is a secondary memory device?a. Keyboardb. Diskc. ALUd. All of the above 16. The difference between memory and storage is that memory is … and storage is …a. Temporary, permanentb. Permanent, temporaryc. Slow, fastd. All of above 17. A floppy disk containsa. Circular tracks onlyb. Sectors onlyc. Both circular tracks and sectorsd. All of the above 18. The octal equivalent of 111010 isa. 81b. 72c. 71d. None of above

19. The first electronic computer in the world wasa. UNIVACb. EDVACc. ENIACd. All of above 20. The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is calleda. ASCIIb. EBCDICc. BCDd. All of above Answers:

1. Correct Answer: b2. Correct Answer: c3. Correct Answer: b4. Correct Answer: c5. Correct Answer: a6. Correct Answer: d7. Correct Answer: a8. Correct Answer: a9. Correct Answer: a10. Correct Answer: d11. Correct Answer: a12. Correct Answer: d13. Correct Answer: d14. Correct Answer: c15. Correct Answer: b16. Correct Answer: a17. Correct Answer: c18. Correct Answer: b19. Correct Answer: c20. Correct Answer: a

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Set - 6

1. Which was the computer conceived by Babbage?a. Analytical Engineb. Arithmetic Machinec. Donald Kunthd. All of above 2. Offline device isa. A device which is not connected to CPUb. A device which is connected to CPUc. A direct access storage deviced. An I/O device 3. Which of the following registers is loaded with the contents of the memory location pointed by the PC?a. Memory address registersb. Memory data registersc. Instruction registerd. Program counter 4. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?a. Memory address registerb. Memory data registerc. Instruction registerd. Program counter 5. Microprocessors can be used to makea. Computersb. Digital systemsc. Calculatorsd. All of above 6. how many address lines are needed to address each machine location in a 2048 x 4 memory chip?a. 10b. 11c. 8d. 12 7. which American computer company is called Big Blue?a. Microsoftb. Compaq Corpc. IBM

d. Tandy Svenson 8. When did IBM introduce the 20286 based PC/AT?a. 1982b. 1984c. 1985d. 1989 9. When was the X window system born?a. 1984b. 1989c. 1988d. 1990 10. Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?a. Tabulator Machine Co.b. Computer Tabulating Recording Co.c. The Tabulator Ltd.d. International Computer Ltd.11. The first electronic general purpose digital computer built by Mauchly and Eckert called ENIA did not work on the stored program principle. How many numbers could it store in its internal memory?a. 100b. 20c. 40d. 80 12. The digital computer was developed primarily ina. USSRb. Japanc. USAd. UK 13. The subject of cybernetics deals with the science ofa. Geneticsb. Control and communicationc. Molecular biologyd. Biochemistry 14. Who is credited with the idea of using punch cards to control patterns in a waving machine?a. Pascalb. Hollerithc. Babbage

d. Jacquard 15. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes?a. Home computersb. Diskless computersc. Dedicated computersd. General purpose computers 16. Which of the following require large computers memory?a. Imagingb. Graphicsc. Voiced. All of Above 17. A term associated with the comparison of processing speeds of different computer system is:a. EFTSb. MPGc. MIPSd. CPS 18. The process of starting a or restarting a computer system by loading instructions from a secondary storage device into the computer memory is calleda. Dupingb. Bootingc. Paddingd. CPS 19. who invented the microprocessor?a. Marcian E Huffb. Herman H Goldsteinc. Joseph Jacquardd. All of above 20. One computer that is not considered a portable isa. Minicomputerb. Laptop computerc. Notebook computerd. All of above Answers:1. Which was the computer conceived by Babbage?a. Analytical Engine

2. Offline device isa. A device which is not connected to CPU 3. Which of the following registers is loaded with the contents of the memory location pointed by the PC?c. Instruction register 4. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?d. Program counter 5. Microprocessors can be used to maked. All of above 6. how many address lines are needed to address each machine location in a 2048 x 4 memory chip?b. 11 7. which American computer company is called Big Blue?c. IBM 8. When did IBM introduce the 20286 based PC/AT?b. 1984 9. When was the X window system born?a. 1984 10. Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?a. Tabulator Machine Co. 11. The first electronic general purpose digital computer built by Mauchly and Eckert called ENIA did not work on the stored program principle. How many numbers could it store in its internal memory?b. 20 12. The digital computer was developed primarily inc. USA 13. The subject of cybernetics deals with the science of

b. Control and communication 14. Who is credited with the idea of using punch cards to control patterns in a waving machine?d. Jacquard 15. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes?a. Home computers 16. Which of the following require large computers memory?d. All of Above 17. A term associated with the comparison of processing speeds of different computer system is:c. MIPS 18. The process of starting a or restarting a computer system by loading instructions from a secondary storage device into the computer memory is calledb. Booting 19. who invented the microprocessor?a. Marcian E Huff 20. One computer that is not considered a portable isa. Minicomputer _________________________________________________________________________

Set - 7 1. the accuracy of the floating point numbers represent able in two 16bit words of a computer is approximatelya. 16 digitsb. 6 digitsc. 4 digitsd. All of above 2. a dumb terminal hasa. an embedded microprocessor

b. extensive memoryc. independent processing capabilityd. a keyboard and screen 3. plotter accuracy is measured in terms of repeatability anda. buffer sizeb. resolutionc. vertical dimensiond. intelligence 4. bit map terminala. support display containing multiple windowb. require considerable amount of video RAMc. requires tremendous amount of copying and hence low performanced. all of above 5. how many symbols exist in Baudot code?a. 32b. 116c. 58d. 76 6. Daisy wheel printer is a type ofa. Matrix printerb. Impact printerc. Laser printerd. Manual printer 7. The number of records contained within a block of data on magnetic tape is defined by thea. Block definitionb. Record contain clausec. Blocking factord. Record per block 8. Serial access memories are useful in applications wherea. Data consists of numbersb. Short access time is requiredc. Each stored word is processed differentlyd. Data naturally needs to flow in and out in serial form 9. how many types of storage loops exists in magnetic bubble memorya. 8b. 4c. 16

d. 2 10. which of the following memories must be refreshed many times per second?a. Static RAMb. Dynamic RAMc. EPROMd. ROM 11. The memory which is programmed at the time it is manufactureda. ROMb. RAMc. PROMd. EPROM 12. Which of the following memory medium is not used as main memory system?a. Magnetic coreb. Semiconductorc. Magnetic taped. Both semiconductor and magnetic tape 13. The control unit of a microprocessora. Stores data in the memoryb. Accepts input data from keyboardc. Performs arithmetic/logic functiond. None of above 14. Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known asa. PCb. Flagsc. Memory Address Registersd. General Purpose Registers 15. One of the main feature that distinguish microprocessors from micro-computer isa. Words are usually large in microprocessorsb. Words are shorter in microprocessorsc. Microprocessor does not contain I/O deviced. Exactly the same as the machine cycle time 16. Which was the world’s first microcomputer that used Intel 80386 microprocessor chip?a. IBM PS/2b. HP-9830c. DeskPro-386d. IBM-360

17. When was the world’s first laptop computer introduced in the market and by whom?a. Hewlett-Packard, 1980b. Epson, 1981c. Laplink Traveling Software Inc, 1982d. Tandy Model-200, 1985 18. The first microprocessor built by the Intel corporation was calleda. 8008b. 8080c. 4004d. 8800 19. who built the world’s first electronic calculator using telephone relays, light bulbs and batteries?a. Claude Shannonb. Konrard Zuesc. George Stibitsd. Howard H. Aiken 20. Who developed a mechanical device in the 17th century that could add, subtracts, multiply, divide and find square roots?a. Napierb. Babbagec. Pascald. Leibniz

Answers:_______________________________________

Set - 8 1. IBM 7000 digital computera. Belongs to second generationb. Uses VLSIc. Employs semiconductor memoryd. Has modular constructions 2. The proper definition of a modern digital computer is

a. An electronic automated machine that can solve problems involving words and numbersb. A more sophistic and modified electronic pocket calculatorc. Any machine that can perform mathematical operationsd. A machine that works on binary code 3. A modern electronic computer is a machine that is meant fora. Doing quick mathematical calculationsb. Input, storage, manipulation and outputting of datac. Electronic data processingd. Performing repetitive tasks accurately 4. An integrated circuit isa. A complicated circuitb. An integrating devicec. Much costlier than a single transistord. Fabricated on a tiny silicon chip 5. Most important advantage of an IC is itsa. Easy replacement in case of circuit failureb. Extremely high reliabilityc. Reduced costd. Lower power consumption 6. In a punched card system, data is processed by aa. Keypunch machine, sorter and posting machineb. Accounting machine, posting machine, and billing machinec. Sorter, posting machine, and billing machined. Accounting machine, keypunch machine and sorter 7. The first machine to successfully perform a long series of arithmetic and logical operations was;a. ENIACb. Mark Ic. Analytic engined. UNIVAC-I 8. In the third generation of computers:a. Distributed data processing first became popularb. An operating system was first developedc. High-level prcedu7ral languages were firs usedd. On-line, real time systems first became popular 9. A characteristic of card systems is:a. Slowness in processing data

b. Using cards as records of transactionsc. Needing a larger DP staffd. All of the above 10. An IBM system/38 represents the computer class of:a. Small-scale computerb. Medium-scale computerc. Large-scale computerd. Super computer 11. The first firm to mass- market a microcomputer as a personal computer wasa. IBMb. Sperry Univacc. Data General corporationd. Radio Shack 12. A digital computer did not score over an analog computer in terms ofa. Speedb. Accuracyc. Costd. Memory 13. In 1830, Charles Babbage designed a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibition?a. 1820b. 1860c. 1855d. 1870 14. Which was the world’s first minicomputer and when was it introduced?a. PDP-I, 1958b. IBM System/36, 1960c. PDP-II, 1961d. VAX 11/780, 1962 15. Where was India’s first computer installed and when?a. Indian Institute of Technology, Delhi, 1977b. Indian Institute of Science, Bangalore, 1971c. Indian Iron & Steel Co. Ltd., 1968d. Indian Statistical Institute, Calcutta, 1955 16. Which of the following are the two main components of the CPU?a. Control unit and registersb. Registers and main memory

c. Control Unit and ALUd. ALU and bus 17. Which of the following is true?a. Fields are composed of bytesb. Records are composed of fieldsc. Fields are composed of charactersd. All of above 18. Which of the following file organization is most efficient for a file with a high degree of file activity?a. Sequentialb. ISAMc. VSAMd. B-Tree Index 19. The two basic types of record-access methods area. Sequential and randomb. Sequential and indexedc. Direct and immediated. On-line and real time 20. The advantage of COM are its … and …a. Compact size; speed readabilityb. Compact size, speedc. Readability; speedd. Low cost; readability Answers:1. IBM 7000 digital computerc. Employs semiconductor memory 2. The proper definition of a modern digital computer isd. A machine that works on binary code 3. A modern electronic computer is a machine that is meant forb. Input, storage, manipulation and outputting of data 4. An integrated circuit isd. Fabricated on a tiny silicon chip 5. Most important advantage of an IC is its

b. Extremely high reliability 6. In a punched card system, data is processed by a d. Accounting machine, keypunch machine and sorter 7. The first machine to successfully perform a long series of arithmetic and logical operations was; b. Mark I 8. In the third generation of computers:d. On-line, real time systems first became popular 9. A characteristic of card systems is:d. All of the above 10. An IBM system/38 represents the computer class of:a. Small-scale computer 11. The first firm to mass- market a microcomputer as a personal computer was c. Data General corporation 12. A digital computer did not score over an analog computer in terms of b. Accuracy 13. In 1830, Charles Babbage designed a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibition?c. 1855 14. Which was the world’s first minicomputer and when was it introduced?a. PDP-I, 1958 15. Where was India’s first computer installed and when?d. Indian Statistical Institute, Calcutta, 1955 16. Which of the following are the two main components of the CPU?c. Control Unit and ALU 17. Which of the following is true?

d. All of above 18. Which of the following file organization is most efficient for a file with a high degree of file activity?a. Sequential 19. The two basic types of record-access methods are a. Sequential and random 20. The advantage of COM are its … and …b. Compact size, speed ________________________________________________________

Set - 9 1. A disadvantage of the laser printer is:a. It is quieter than an impact printerb. It is very slowc. The output is of a lower qualityd. None of above 2. Which of the following is not true for a magnetic disk?a. It is expensive relative to magnetic tapeb. It provides only sequential access to stored datac. Users can easily update records by writing over the old datad. All of above 3. The primary advantage of key-to-tape data entry system isa. A large percentage of editing can be performed at the time of data entryb. Key verification is easily performedc. The tape is reusabled. Keying errors can be detected as they occur. 4. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:a. Data collection terminalb. OCR register terminal

c. Video Display terminald. POS terminal 5. Which of the following does not affect the resolution of a video display image?a. Bandwidthb. Raster scan ragec. Vertical and horizontal lines of resolutiond. Screen size 6. While inserting a diskette into the diskette drive of a PC, the diskette’s label side should facea. Eastb. Northc. Southd. Up 7. in which year was UK’s premier computing event called “The which computer” started?a. 1980b. 1985c. 1986d. 1987 8. The latest PC keyboards use a circuit that senses the movement by the change in its capacitance,a. Capacitance keyboardb. Mechanical keyboardc. Qwerty keyboardd. Dvorak keyboard 9. Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called?a. Conductorsb. Busesc. Connectorsd. Connectively 10. Which of the following magazines covers only the IBM PC and its compatibles?a. Byteb. PC Magazinec. Personal Computing

d. Interface Age 11. Which of the following professions has not been affected by personal computers?a. Medicalb. Clerical and lawc. Accountingd. None of the above 12. The arranging of data in a logical sequence is calleda. Sortingb. Classifyingc. Reproducingd. Summarizing 13. When was Apple Macintosh II microcomputer introduced in the market?a. 1964b. 1970c. 1983d. 1986 14. What is the name of the new color laptop computer which is powered by a 386 processor at 33 MHz and is built by Epson?a. AX3/33b. NEC-20c. Magnum 2000d. HCL-3000 15. What does the disk drive of a computer do?a. Rotate the diskb. Read the diskc. Load a program from the disk into the memoryd. Both b and c 16. The language that the computer can understand and execute is calleda. Machine languageb. Application softwarec. System programd. All of above

17. An application suitable for sequential processing isa. Processing of gradesb. Payroll processingc. Both a and bd. All of above 18. The word processing task associated with changing the appearance of a document isa. Editingb. Writingc. Formattingd. All of above 19. Which of the following is used as a primary storage device?a. Magnetic drumb. Promc. Floppyd. All of above 20. Which of the following memories needs refreshing?a. SRAMb. DRAMc. ROMd. All of above

Answers

1. A disadvantage of the laser printer is:d. None of above 2. Which of the following is not true for a magnetic disk?b. It provides only sequential access to stored data 3. The primary advantage of key-to-tape data entry system isc. The tape is reusable

4. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:d. POS terminal 5. Which of the following does not affect the resolution of a video display image?d. Screen size 6. While inserting a diskette into the diskette drive of a PC, the diskette’s label side should faced. Up 7. in which year was UK’s premier computing event called “The which computer” started?a. 1980 8. The latest PC keyboards use a circuit that senses the movement by the change in its capacitance,a. Capacitance keyboard 9. Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called?b. Buses 10. Which of the following magazines covers only the IBM PC and its compatibles?b. PC Magazine 11. Which of the following professions has not been affected by personal computers?d. None of the above 12. The arranging of data in a logical sequence is calleda. Sorting 13. When was Apple Macintosh II microcomputer introduced in the market?c. 1983 14. What is the name of the new color laptop computer which is powered by a 386 processor at 33 MHz and is built by Epson?a. AX3/33 15. What does the disk drive of a computer do?d. Both b and c 16. The language that the computer can understand and execute is called

a. Machine language 17. An application suitable for sequential processing isc. Both a and b 18. The word processing task associated with changing the appearance of a document isc. Formatting 19. Which of the following is used as a primary storage device?b. Prom 20. Which of the following memories needs refreshing?b. DRAM

Set - 10 1. Which of the following devices can be sued to directly image printed text?a. OCRb. OMRc. MICRd. All of above 2. The output quality of a printer is measured bya. Dot per inchb. Dot per sq. inchc. Dots printed per unit timed. All of above 3. In analog computera. Input is first converted to digital formb. Input is never converted to digital formc. Output is displayed in digital formd. All of above 4. In latest generation computers, the instructions are executeda. Parallel onlyb. Sequentially onlyc. Both sequentially and parallel

d. All of above 5. Who designed the first electronics computer – ENIAC?a. Van-Neumannb. Joseph M. Jacquardc. J. Presper Eckert and John W Mauchlyd. All of above 6. Who invented the high level language c?a. Dennis M. Ritchieb. Niklaus Writhc. Seymour Papertd. Donald Kunth 7. Personnel who design, program, operate and maintain computer equipment refers toa. Console-operatorb. Programmerc. Peoplewared. System Analyst 8. When did arch rivals IBM and Apple Computers Inc. decide to join hands?a. 1978b. 1984c. 1990d. 1991 9. Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?a. Monitorb. Hardwarec. Robotd. Computer 10. An error in software or hardware is called a bug. What is the alternative computer jargon for it?a. Leechb. Squidc. Slugd. Glitch

11. Modern Computer are very reliable but they are nota. Fastb. Powerfulc. Infallibled. Cheap 12. What is the name of the display feature that highlights are of the screen which requires operator attention?a. Pixelb. Reverse videoc. Touch screend. Cursor 13. IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display?a. Indiab. Chinac. Germanyd. Taiwan 14. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?a. Daughter boardb. Motherboardc. Father boardd. Breadboard 15. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board?a. Motherboardb. Breadboardc. Daughter boardd. Grandmother board 16. What is meant by a dedicated computer?a. Which is used by one person onlyb. Which is assigned one and only one taskc. Which uses one kind of softwared. Which is meant for application software

17. The system unit of a personal computer typically contains all of the following except:a. Microprocessorb. Disk controllerc. Serial interfaced. Modem 18. A computer program that converts an entire program into machine language is called a/ana. Interpreterb. Simulatorc. Compilerd. Commander 19. A computer program that translates one program instructions at a time into machine language is called a/ana. Interpreterb. CPUc. Compilerd. Simulator 20. A small or intelligent device is so called because it contains within it aa. Computerb. Microcomputerc. Programmabled. Sensor

Answers:1. Which of the following devices can be sued to directly image printed text?a. OCR 2. The output quality of a printer is measured byb. Dot per sq. inch 3. In analog computerb. Input is never converted to digital form

4. In latest generation computers, the instructions are executedc. Both sequentially and parallel 5. Who designed the first electronics computer – ENIAC?c. J. Presper Eckert and John W Mauchly 6. Who invented the high level language c?a. Dennis M. Ritchie 7. Personnel who design, program, operate and maintain computer equipment refers toc. Peopleware 8. When did arch rivals IBM and Apple Computers Inc. decide to join hands?d. 1991 9. Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?d. Computer 10. An error in software or hardware is called a bug. What is the alternative computer jargon for it?d. Glitch 11. Modern Computer are very reliable but they are notc. Infallible 12. What is the name of the display feature that highlights are of the screen which requires operator attention?b. Reverse video 13. IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display?d. Taiwan 14. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?b. Motherboard 15. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board?

a. Motherboard 16. What is meant by a dedicated computer?b. Which is assigned one and only one task 17. The system unit of a personal computer typically contains all of the following except:d. Modem 18. A computer program that converts an entire program into machine language is called a/anc. Compiler 19. A computer program that translates one program instructions at a time into machine language is called a/ana. Interpreter 20. A small or intelligent device is so called because it contains within it ad. Sensor

Set - 11 1. The ALU of a computer responds to the commands coming froma. Primary memoryb. Control sectionc. External memoryd. Cache memory 2. The act of retrieving existing data from memory is calleda. Read-outb. Read fromc. Readd. All of above 3. All modern computer operate ona. Informationb. Floppiesc. Datad. Word 4. Instructions and memory address are represented by

a. Character codeb. Binary codesc. Binary wordd. Parity bit 5. Which of the following code used in present day computing was developed by IBM Corporation?a. ASCIIb. Hollerith Codec. Baudot Coded. EBCDIC Code 6. What is the latest write-once optical storage media?a. Digital paperb. Magneto-optical diskc. WORM diskd. CD-ROM disk 7. The most important advantage of a video disk isa. Compactnessb. Potential capacityc. Durabilityd. Cost effectiveness 8. What is the number of read-write heads in the drive for a 9-trac magnetic tape?a. 9b. 16c. 18d. 27 9. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?a. Track numberb. Sector numberc. Surface numberd. All of above 10. As compared to diskettes, the hard disks area. More expensive

b. More portablec. Less rigidd. Slowly accessed 11. Floppy disks which are made from flexible plastic material are also called?a. Hard disksb. High-density disksc. Diskettesd. Templates 12. Regarding a VDU, Which statement is more correct?a. It is an output deviceb. It is an input devicec. It is a peripheral deviced. It is hardware item 13. What is the name of the computer terminal which gives paper printout?a. Display screenb. Soft copy terminalc. Hard copy terminald. Plotter 14. Dot-matrix is a type ofa. Tapee. Printerf. Diskg. Bus 15. The two kinds of main memory are:a. Primary and secondaryb. Random and sequentialc. ROM and RAMd. All of above 16. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is calleda. Laser printerb. Ink-jet printerc. Drum printer

d. Chan printer 17. Which printer is very commonly used for desktop publishing?a. Laser printerb. Inkjet printerc. Daisywheel printerd. Dot matrix printer 18. An output device that uses words or messages recorded on a magnetic medium to produce audio response isb. Magnetic tapec. Voice response unitd. Voice recognition unite. Voice band 19. Which of the following will happen when data is entered into a memory location?a. It will add to the content of the locationb. It will change the address of the memory locationc. It will erase the previous contentd. It will not be fruitful if there is already some data at the location 20. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data isa. Memoryb. Bufferc. Accumulatord. Address

Answers:1. The ALU of a computer responds to the commands coming fromb. Control section 2. The act of retrieving existing data from memory is calledd. All of above 3. All modern computer operate onc. Data 4. Instructions and memory address are represented by

b. Binary codes 5. Which of the following code used in present day computing was developed by IBM Corporation?d. EBCDIC Code 6. What is the latest write-once optical storage media?d. CD-ROM disk 7. The most important advantage of a video disk isb. Potential capacity 8. What is the number of read-write heads in the drive for a 9-trac magnetic tape?a. 9 9. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?d. All of above 10. As compared to diskettes, the hard disks area. More expensive 11. Floppy disks which are made from flexible plastic material are also called?c. Diskettes 12. Regarding a VDU, Which statement is more correct?c. It is a peripheral device 13. What is the name of the computer terminal which gives paper printout?c. Hard copy terminal 14. Dot-matrix is a type ofb. Printer 15. The two kinds of main memory are:c. ROM and RAM 16. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is calledb. Ink-jet printer

17. Which printer is very commonly used for desktop publishing?a. Laser printer 18. An output device that uses words or messages recorded on a magnetic medium to produce audio response isb. Voice response unit 19. Which of the following will happen when data is entered into a memory location?c. It will erase the previous content 20. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data isb. Buffer

Set - 12 1. To locate a data item for storage isa. Fieldb. Feedc. Databased. Fetch 2. programs designed to perform specific tasks is known asa. system softwareb. application softwarec. utility programsd. operating system 3. perforated paper used as input of output media is known asa. paper tapesb. magnetic tapec. punched papers taped. card punch 4. Time during which a job is processed by the computer isa. Delay timesb. Real timec. Execution timed. Down time

5. a computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known asa. Super computerb. Mini computerc. Micro computerd. Macro computer 6. An approach that permits the computer to work on several programs instead of one isa. On-line thesaurusb. Multiprogrammingc. Over lapped processingd. Outline processor 7. A directly accessible appointment calendar is feature of a … resident packagea. CPUb. Memoryc. Bufferd. ALU 8. The term gigabyte refers toa. 1024 bytesb. 1024 kilobytesc. 1024 megabytesd. 1024 gigabyte 9. Which of the following processors use RISC technology?a. 486dxb. Power PCc. 486sxd. 6340 10. A/n …. Device is any device that provides information, which is sent to the CPUa. Inputb. Outputc. CPUd. Memory 11. Current SIMMs have either … or … connectors (pins)a. 9 or 32

b. 30 or 70c. 28 or 72d. 30 or 72 12. The storage subsystem in a microcomputer consists mainly of … or … media with varying capacitiesa. Memory or videob. Magnetic or opticalc. Optical or memoryd. Video or magnetic 13. Which of the following is not an input device?a. OCRb. Optical scannersc. Voice recognition deviced. COM (Computer Output to Microfilm) 14. The central processing unit (CPU) consists ofa. Input, output and processingb. Control unit, primary storage, and secondary storagec. Control unit, arithmetic-logic unit and primary storaged. Control unit, processing, and primary storage 15. EBCDIC can code up to how many different characters?a. 256b. 16c. 32d. 64 16. Which is considered a direct entry input device?a. Optical scannerb. Mouse and digitizerc. Light pend. All of the above 17. Which is used for manufacturing chips?a. Busb. Control unitc. Semiconductors

d. A and b only 18. The computer code for the interchange of information between terminals isa. ASCIIb. BCDc. EBCDICd. All of above 19. A byte consists ofa. One bitb. Four bitsc. Eight bitsd. Sixteen bits 20. A hybrid computera. Resembles digital computerb. Resembles analog computerc. Resembles both a digital and analog computerd. None of the above 1. To locate a data item for storage isd. Fetch 2. programs designed to perform specific tasks is known asb. application software 3. perforated paper used as input of output media is known asa. paper tapes 4. Time during which a job is processed by the computer isc. Execution time 5. a computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known asa. Super computer 6. An approach that permits the computer to work on several programs instead of one isc. Over lapped processing 7. A directly accessible appointment calendar is feature of a … resident package

b. Memory 8. The term gigabyte refers toc. 1024 megabytes 9. Which of the following processors use RISC technology?b. Power PC 10. A/n …. Device is any device that provides information, which is sent to the CPUa. Input 11. Current SIMMs have either … or … connectors (pins)d. 30 or 72 12. The storage subsystem in a microcomputer consists mainly of … or … media with varying capacitiesb. Magnetic or optical 13. Which of the following is not an input device?d. COM (Computer Output to Microfilm) 14. The central processing unit (CPU) consists ofc. Control unit, arithmetic-logic unit and primary storage 15. EBCDIC can code up to how many different characters?a. 256 16. Which is considered a direct entry input device?d. All of the above 17. Which is used for manufacturing chips?c. Semiconductors 18. The computer code for the interchange of information between terminals isa. ASCII 19. A byte consists ofc. Eight bits 20. A hybrid computerc. Resembles both a digital and analog computer

Set - 13 1. The silicon chips used for data processing are calleda. RAM chipsb. ROM chipsc. Micro processorsd. PROM chips 2. The metal disks, which are permanently housed in, sealed and contamination free containers are calleda. Hard disksb. Floppy diskc. Winchester diskd. Flexible disk 3. A computer consists ofa. A central processing unitb. A memoryc. Input and output unitd. All of the above 4. An application program that helps the user to change any number and immediately see the result of that change isa. Desktop publishing programb. Databasec. Spreadsheetd. All of above 5. The instructions for starting the computer are house ona. Random access memoryb. CD-Romc. Read only memory chipd. All of above 6. The ALU of a computer normally contains a number of high speed storage element calleda. Semiconductor memoryb. Registers

c. Hard disksd. Magnetic disk 7. a factor which would strongly influence a business person to adopt a computer is itsa. Accuracyb. Reliabilityc. Speedd. All of above 8. The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known asa. Magnetic core memoryb. Magnetic tape memoryc. Magnetic disk memoryd. Magnetic bubble memory 9. CAD stands fora. Computer aided designb. Computer algorithm for designc. Computer application in designd. All of the above 10. RATS stand fora. Regression Analysis Time Seriesb. Regression Analysis Time Sharingc. Real Analysis Seriesd. All of above 11. In which year was chip used inside the computer for the first time?a. 1964b. 1975c. 1999d. 1944 12. What was the name of the first commercially available microprocessor chip?a. Intel 308b. Intel 33c. Intel 4004d. Motorola 639

13. When were the first minicomputer built?a. 1965b. 1962c. 1971d. 1966 14. The first digital computer built with IC chips was known ase. IBM 7090f. Apple – 1g. IBM System / 360h. VAX-10 15. In which language is source program written?a. Englishb. Symbolicc. High leveld. Temporary 16. Which of the following terms is the most closely related to main memory?a. Non volatileb. Permanentc. Control unitd. Temporary 17. Which of the following is used for manufacturing chips?a. Control busb. Control unitc. Parity unitd. Semiconductor 18. Which of the following is required when more than one person uses a central computer at the same time?a. Terminalb. Light penc. Digitizerd. Mouse 19. Which of the following is used only for data entry and storage, and never for processing?a. Mouse

b. Dumb terminalc. Micro computerd. Dedicated data entry system 20. To produce high quality graphics (hardcopy) in color, you would want to use a/na. RGB monitorb. Plotterc. Ink-jet printerd. Laser printer 1. The silicon chips used for data processing are calledd. PROM chips 2. The metal disks, which are permanently housed in, sealed and contamination free containers are calledc. Winchester disk 3. A computer consists ofd. All of the above 4. An application program that helps the user to change any number and immediately see the result of that change isc. Spreadsheet 5. The instructions for starting the computer are house onc. Read only memory chip 6. The ALU of a computer normally contains a number of high speed storage element calledb. Registers 7. a factor which would strongly influence a business person to adopt a computer is itsd. All of above 8. The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known asd. Magnetic bubble memory 9. CAD stands fora. Computer aided design 10. RATS stand for

a. Regression Analysis Time Series 11. In which year was chip used inside the computer for the first time?b. 1975 12. What was the name of the first commercially available microprocessor chip?c. Intel 4004 13. When were the first minicomputer built?a. 1965 14. The first digital computer built with IC chips was known asc. IBM System / 360 15. In which language is source program written?c. High level 16. Which of the following terms is the most closely related to main memory?d. Temporary 17. Which of the following is used for manufacturing chips?d. Semiconductor 18. Which of the following is required when more than one person uses a central computer at the same time?a. Terminal 19. Which of the following is used only for data entry and storage, and never for processing?b. Dumb terminal 20. To produce high quality graphics (hardcopy) in color, you would want to use a/nb. Plotter

Set - 14 1. Which of the following printers are you sure will not to use if your objective is to print on multi carbon forms?a. Daisy wheelb. Dot matrix

c. Laserd. Thimble 2. Which of the following printing devices an output composed of a series of data?a. Wire matrix printerb. Band printerc. Wang image printerd. Both a and c 3. The personal computer industry was started bya. IBMb. Applec. Compaqd. HCL 4. In the IBM PC-At, what do the words AT stand fora. Additional Terminalsb. Advance technologyc. Applied technologyd. Advanced terminology 5. Magnetic tape can serve asa. Secondary storage mediab. Output mediac. Input mediad. All of the above 6. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will bea. 216b. 65,536c. 64Kd. Any of the above 7. The two major types of computer chips area. External memory chipb. Primary memory chipc. Microprocessor chipd. Both b and c

8. As compared to the secondary memory, the primary memory of a computer isa. Largeb. Cheapc. Fastd. Slow 9. Which of the following is a way to access secondary memory?a. Random access memoryb. Action methodc. Transfer methodd. Density method 10. Which was the most popular first generation computer?a. IBM 1650b. IBM 360c. IBM 1130d. IBM 2700 11. What is the responsibility of the logical unit in the CPU of a computer?a. To produce resultb. To compare numbersc. To control flow of informationd. To do math’s works 12. The secondary storage devices can only store data but they cannot performa. Arithmetic Operationb. Logic operationc. Fetch operationsd. Either of the above 13. Which of the printers used in conjunction with computers uses dry ink power?a. Daisy wheel printerb. Line printerc. Laser printerd. Thermal printer 14. Which of the following produces the best quality graphics reproduction?a. Laser printer

b. Ink jet printerc. Plotterd. Dot matrix printer 15. Which of the following memories allows simultaneous read and write operations?a. ROMb. RAMc. EPROMd. None of above 16. Which of the following memories has the shortest access times?a. Cache memoryb. Magnetic bubble memoryc. Magnetic core memoryd. RAM 17. A 32 bit microprocessor has the word length equal toa. 2 byteb. 32 bytec. 4 byted. 8 byte 18. An error in computer data is calleda. Chipb. Bugc. CPUd. Storage device 19. A set of information that defines the status of resources allocated to a process isa. Process controlb. ALUc. Register Unitd. Process description 20. Any method for controlling access to or use of memory is knowna. Memory mapb. Memory protectionc. Memory managementd. Memory instruction

1. Which of the following printers are you sure will not to use if your objective is to print on multi carbon forms?c. Laser 2. Which of the following printing devices an output composed of a series of data?d. Both a and c 3. The personal computer industry was started bya. IBM 4. In the IBM PC-At, what do the words AT stand forb. Advance technology 5. Magnetic tape can serve asd. All of the above 6. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will beb. 65,536 7. The two major types of computer chips ared. Both b and c 8. As compared to the secondary memory, the primary memory of a computer isc. Fast 9. Which of the following is a way to access secondary memory?a. Random access memory 10. Which was the most popular first generation computer?a. IBM 1650 11. What is the responsibility of the logical unit in the CPU of a computer?b. To compare numbers 12. The secondary storage devices can only store data but they cannot performd. Either of the above 13. Which of the printers used in conjunction with computers uses dry ink power?c. Laser printer

14. Which of the following produces the best quality graphics reproduction?c. Plotter 15. Which of the following memories allows simultaneous read and write operations?b. RAM 16. Which of the following memories has the shortest access times?a. Cache memory 17. A 32 bit microprocessor has the word length equal toc. 4 byte 18. An error in computer data is calledb. Bug 19. A set of information that defines the status of resources allocated to a process isd. Process description 20. Any method for controlling access to or use of memory is knownb. Memory protection

Set - 15 1. A type of core store that has a lower access time than the devices used for working store in the same processor is known asa. Core memoryb. Bufferc. Fast cored. Address register 2. Which of the following is an acronym for electronic delay storage automatic calculator?a. UNIVACb. EDSACc. EDVACd. Abacus 3. Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals?

a. CAMb. ROMc. EPROMd. Abacus 4. A disk storage medium in the form of an assembly containing a single rigid magnetic disk permanently isa. Fixed diskb. Disk cartridgec. Card punchd. Card reader 5. A memory that is capable of determining whether a given datum is contained in one of its address isa. ROMb. PROMc. CAMd. RAM 6. A method of implementing a memory management system isa. Buddy systemb. Bridgewarec. Broadband coaxial systemd. All of the above 7. A plastic card similar to a credit card but having some memory and a microprocessor embedded within it isa. Punched paper tapeb. Chip cardc. Card punchd. Magnetic tape 8. A device that operates under the control of another device is calleda. Stemb. Slavec. Simulatord. Emulator 9. Actual data processing operations are performed in the arithmetic logic section, but not in the …. Storage section of a processor unit

a. Primaryb. Accumulatorc. Bufferd. Secondary 10. The use of spooler programs and/or …. Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progressa. Registered mailsb. Memoryc. CPUd. Buffer 11. Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?a. Mouseb. Magnetic diskc. Visual display terminald. Card punch 12. User programmable terminals that combine VDT hardware with built-in microprocessor isa. Kipsb. PCc. Mainframed. Intelligent terminals 13. The number of characters that can be stored in given physical space isa. Word lengthb. Bytec. Data densityd. Field 14. the storage capacity of a disk system depends on the bits per inch of track and the tracks per inch ofa. Cylinderb. Humc. Clusterd. Surface 15. The disk drive component used to position read/write heads over a specific track I known asa. Acoustic couples

b. Access armc. Clusterd. All of the above 16. condensing output data to exhibit specific information isa. calculatingb. recordingc. mergingd. summarizing 17. which chips using special external equipment can reprograma. ROMb. PROMc. SAMd. RAM 18. A storage device whe3re the access time is depended upon the location of the data isa. Random accessb. Serial accessc. Sequential accessd. Transaction access 19. Which number system is commonly used as a shortcut notation for groups of four binary digits?a. Binaryb. Decimalc. Octald. Hexadecimal 20. Interface electronic circuit is used to interconnect I/O devices to a computer’s CPU ora. ALUb. Memoryc. Bufferd. Register

Answers:1. A type of core store that has a lower access time than the devices used for working store in the same processor is known asd. Address register 2. Which of the following is an acronym for electronic delay storage automatic calculator?b. EDSAC 3. Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals?c. EPROM 4. A disk storage medium in the form of an assembly containing a single rigid magnetic disk permanently isb. Disk cartridge 5. A memory that is capable of determining whether a given datum is contained in one of its address isc. CAM 6. A method of implementing a memory management system isa. Buddy system 7. A plastic card similar to a credit card but having some memory and a microprocessor embedded within it isa. Punched paper tape 8. A device that operates under the control of another device is calledb. Slave 9. Actual data processing operations are performed in the arithmetic logic section, but not in the …. Storage section of a processor unita. Primary 10. The use of spooler programs and/or …. Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progressd. Buffer

11. Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?a. Mouse 12. User programmable terminals that combine VDT hardware with built-in microprocessor isd. Intelligent terminals 13. The number of characters that can be stored in given physical space isc. Data density 14. the storage capacity of a disk system depends on the bits per inch of track and the tracks per inch ofd. Surface 15. The disk drive component used to position read/write heads over a specific track I known asb. Access arm 16. condensing output data to exhibit specific information isd. summarizing 17. which chips using special external equipment can reprogramb. PROM 18. A storage device whe3re the access time is depended upon the location of the data isb. Serial access 19. Which number system is commonly used as a shortcut notation for groups of four binary digits?d. Hexadecimal 20. Interface electronic circuit is used to interconnect I/O devices to a computer’s CPU orb. Memory

Set - 16 1. One millisecond isa. 1 secondb. 10th of a secondsc. 1000th of a secondsd. 10000th of a seconds

Correct Answer: c Collected and distributed at psExam.com 2. An online backing storage system capable of storing larger quantities of data isa. CPUb. Memoryc. Mass storaged. Secondary storageCorrect Answer: c Please, point out any mistakes to admin@psexam.com 3. One of a class of storage device devices that can access storage locations in any order isa. DTEb. DASDc. DDEd. DDECorrect Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com 4. Which is an item of storage medium in the form of circular plate?a. Diskb. CPUc. Printerd. ALUCorrect Answer: a Computer Fundamentals – Fundamentals of Computer Science 5. Properly arranged data is calleda. Fieldb. Wordsc. Informationd. FileCorrect Answer: c Collected and distributed at psExam.com 6. Another word for a daisy wheel printera. Petal printerb. Golf ball printerc. Laser printer

d. Line printerCorrect Answer: b Please, point out any mistakes to admin@psexam.com 7. A term used to describe interconnected computer configuration isa. Multiprogrammingb. Modulationc. Multiprocessingd. Micro program sequenceCorrect Answer: a Objective Questions - Multiple Choice Questions - MCQs at psExam.com 8. An input /output device at which data enters or leaves a computer system isa. Keyboardb. Terminalc. Printerd. PlotterCorrect Answer: b Computer Fundamentals – Fundamentals of Computer Science 9. A physical connection between the microprocessor memory and other parts of the m9crocomputer is known asa. Pathb. Address busc. Routed. All of the aboveCorrect Answer: b Collected and distributed at psExam.com 10. A group of magnetic tapes, videos or terminals usually under the control of one master isa. Cylinderb. Surfacec. Trackd. ClusterCorrect Answer: d Please, point out any mistakes to admin@psexam.com 11. Number crunch8ier is the informal name fora. Mini computer

b. Super computerc. Microcomputerd. Mainframe computerCorrect Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com 12. A technique used by codes to convert an analog signal into a digital bit stream is known asa. Pulse code modulationb. Pulse stretcherc. Query processingd. Queue managementCorrect Answer: a Computer Fundamentals – Fundamentals of Computer Science 13. The personnel who deals with the computer and its management put together are calleda. Softwareb. Human warec. Firmwared. HardwareCorrect Answer: b Collected and distributed at psExam.com 14. The brain of any computer system isa. ALUb. Memoryc. CPUd. Control unitCorrect Answer: c Please, point out any mistakes to admin@psexam.com 15. Each model of a computer has a uniquea. Assembly of a computerb. Machine languagec. High level languaged. All of the aboveCorrect Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com

16. Computer professionals working in a computer center are`a. Softwareb. Firmwarec. Hardwared. HumanwareCorrect Answer: d Computer Fundamentals – Fundamentals of Computer Science 17. Which of the it5ems below are considered removable storage media?a. Removable hard disk cartridgesb. (Magneto-optical) diskc. Flexible disks cartridgesd. All of the aboveCorrect Answer: d Collected and distributed at psExam.com 18. Which term is used to describe RAM?a. Dynamic RAM (DRAM)b. Static RAM (SRAM)c. Video RAM (VRAM)d. All of the aboveCorrect Answer: d Please, point out any mistakes to admin@psexam.com 19. Which of the following are (is) considered to be video component?a. Resolutionb. Color depthc. Refresh rated. All of the alcoveCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 20. On a PC, how much memory is available to application software?a. 1024 KBb. 760 KBc. 640 KBd. 560 KBCorrect Answer: c

Set - 17 1. Which of the following items are examples of storage devices?a. Floppy / hard disksb. CD-ROMsc. Tape devicesd. All of the aboveCorrect Answer: d Collected and distributed at psExam.com 2. The Width of a processor’s data path is measured in bits. Which of the following are common data paths?a. 8 bitsb. 12 bitsc. 16 bitsd. 32 bitsCorrect Answer: a Please, point out any mistakes to admin@psexam.com 3. Which is the type of memory for information that does not change on your computer?a. RAMb. ROMc. ERAMd. RW / RAMCorrect Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com 4. What type of memory is not directly addressable by the CPU and requires special softw3are called EMS (expanded memory specification)?a. Extendedb. Expandedc. Based. ConventionalCorrect Answer: b Computer Fundamentals – Fundamentals of Computer Science 5. Before a disk can be used to store data. It must be…….a. Formatted

b. Reformattedc. Addressedd. None of the aboveCorrect Answer: a Collected and distributed at psExam.com 6. What type of device is computer keyboard?a. Memoryb. Outputc. Storaged. InputCorrect Answer: d Please, point out any mistakes to admin@psexam.com 7. The original ASCII code used…bits of each byte, reserving that last bit for error checkinga. 5b. 6c. 7d. 8Correct Answer: c Objective Questions - Multiple Choice Questions - MCQs at psExam.com 8. Which company is the biggest player in the microprocessor industry?a. Motorolab. IBMc. Inteld. AMDCorrect Answer: c Computer Fundamentals – Fundamentals of Computer Science 9. What is required when more than one person uses a central computer at the same time?a. Light penb. Mousec. Digitizerd. TerminalCorrect Answer: d Collected and distributed at psExam.com 10. A hard copy would be prepared on a

a. Line printerb. Dot matrix Printerc. Typewriter terminald. All of the aboveCorrect Answer: d Please, point out any mistakes to admin@psexam.com 11. A typical personal computer used for business purposes would have… of RAM.a. 4 KBb. 16 Kc. 64 Kd. 256 KCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 12. A high quality CAD system uses the following for printing drawing and graphsa. Dot matrix printerb. Digital plotterc. Line printerd. All of the aboveCorrect Answer: b Computer Fundamentals – Fundamentals of Computer Science 13. Symbolic logic was discovered bya. George Booleb. Herman Hollerithc. Van Neumannd. Basic PascalCorrect Answer: a Collected and distributed at psExam.com 14. What was the nick name of the computer used by the Americans in 1952 for their H-bomb project?a. ENIACb. EDSACc. MANIACd. UNIVACCorrect Answer: c

Please, point out any mistakes to admin@psexam.com 15. The word length of a computer is measured ina. Bytesb. Millimetersc. Metersd. BitsCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 16. Multi user systems provided cost savings for small business because they use a single processing unit to link severala. Personal computersb. Workstationsc. Dumb terminalsd. MainframesCorrect Answer: c Computer Fundamentals – Fundamentals of Computer Science 17. What are the three decisions making operations performed by the ALU of a computer?a. Grater thanb. Less thanc. Equal tod. All of the aboveCorrect Answer: d Collected and distributed at psExam.com 18. Which part of the computer is used for calculating and comparing?a. Disk unitb. Control unitc. ALUd. ModemCorrect Answer: c Please, point out any mistakes to admin@psexam.com 19. Can you tell what passes into and out from the computer via its ports?a. Datab. Bytesc. Graphicsd. Pictures

Correct Answer: a Objective Questions - Multiple Choice Questions - MCQs at psExam.com 20. Which type of computers uses the 8-bit code called EBCDIC?a. Minicomputersb. Microcomputersc. Mainframe computersd. Super computerCorrect Answer: c

Set - 18 1. Where as a computer mouse moves over the table surface, the trackball isa. Stationaryb. Difficult to movec. Draggedd. Moved in small stemsCorrect Answer: a Collected and distributed at psExam.com 2. Which one of the following input device is user-programmable?a. Dumb terminalb. Smart terminalc. VDTd. Intelligent terminalCorrect Answer: d Please, point out any mistakes to admin@psexam.com 3. Which computer memory is used for storing programs and data currently being processed by the CPU?a. Mass memoryb. Internal memoryc. Non-volatile memoryd. PROMCorrect Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com

4. Computer instructions written with the use of English words instead of binary machine code is calleda. Mnemonicsb. Symbolic codec. Gray codesd. OpcodeCorrect Answer: b Computer Fundamentals – Fundamentals of Computer Science 5. computer operatorsa. writes computer programs for specific problemsb. operate the device which input and output data from the computerc. normally require a college degree in computer scienced. all of the aboveCorrect Answer: b Collected and distributed at psExam.com 6. A computer programmera. Dies all the thinking for a computeb. Can enter input data quicklyc. Can operate all types of computer equipmentd. Can draw only flowchartCorrect Answer: a Please, point out any mistakes to admin@psexam.com 7. CD-ROMa. Is a `semiconductor memoryb. Memory registerc. Magnetic memoryd. None of the aboveCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 8. Which of the following is not a primary storage device?a. Magnetic tapeb. Magnetic diskc. Optical diskd. None of the aboveCorrect Answer: d

Computer Fundamentals – Fundamentals of Computer Science 9. A name or number used to identify a storage location is calleda. A byteb. A recordc. An addressd. All of aboveCorrect Answer: c Collected and distributed at psExam.com 10. Which of the following is a secondary memory device?a. Keyboardb. Diskc. ALUd. All of the aboveCorrect Answer: b Please, point out any mistakes to admin@psexam.com 11. The difference between memory and storage is that memory is …. and storage is …a. Temporary, permanentb. Permanent, temporaryc. Slow, fastd. All of aboveCorrect Answer: a Objective Questions - Multiple Choice Questions - MCQs at psExam.com 12. A floppy disk containsa. Circular tracks onlyb. Sectors onlyc. Both circular tracks and sectorsd. All of the aboveCorrect Answer: c Computer Fundamentals – Fundamentals of Computer Science 13. The octal equivalence of 111010 isa. 81b. 72c. 71d. None of above

Correct Answer: b Collected and distributed at psExam.com 14. The first electronic computer in the world wasa. UNIVACb. EDVACc. ENIACd. All of aboveCorrect Answer: c Please, point out any mistakes to admin@psexam.com 15. The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is calleda. ASCIIb. EBCDICc. BCDd. All of aboveCorrect Answer: a Objective Questions - Multiple Choice Questions - MCQs at psExam.com 16. Which was the computer conceived by Babbage?a. Analytical engineb. Arithmetic machinec. Donald Knuthd. All of aboveCorrect Answer: a Computer Fundamentals – Fundamentals of Computer Science 17. Offline device isa. A device which is not connected to CPUb. A device which is connected to CPUc. A direct access storage deviced. An I/O deviceCorrect Answer: a Collected and distributed at psExam.com 18. Which of the following registers is loaded with the contents of the memory location pointed by the PC?a. Memory address register

b. Memory data registerc. Instruction registersd. Program counterCorrect Answer: c Please, point out any mistakes to admin@psexam.com 19. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?a. Memory address registerb. Memory data registerc. Instruction registerd. Program counterCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 20. Microprocessors can be used to makea. Computerb. Digital systemsc. Calculatorsd. All of the aboveCorrect Answer: d

Set - 19 1. How many address lines are needed to address each memory location in a 2048 x 4 memory chip?a. 10b. 11c. 8d. 12Correct Answer: b Collected and distributed at psExam.com 2. Which American Computer Company is called big blue?a. Microsoftb. Compaq Corpc. IBMd. Tandy SevensonCorrect Answer: c

Please, point out any mistakes to admin@psexam.com 3. When did IBM introduced the 80286 based PC/AT?a. 1982b. 1984c. 1985d. 1989Correct Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com 4. The first electronic general purpose digital computer built by Motley and Accrete called ENIAC did not work on the stored program concept. How many number s could it store in its internal memory?a. 100b. 20c. 40d. 80Correct Answer: b Computer Fundamentals – Fundamentals of Computer Science 5. The digital computer was developed primarily ina. USSRb. Japanc. USAd. UKCorrect Answer: c Collected and distributed at psExam.com 6. The subject of cybernetics deals with the science ofa. Geneticsb. Control and communicationsc. Molecular biologyd. BiochemistryCorrect Answer: b Please, point out any mistakes to admin@psexam.com 7. who is credited with the idea of using punch cards to control patterns of a weaving machine?a. Pascalb. Hollerith

c. Babbaged. JacquardCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 8. Most of the inexpensive personal computer does not have any disk or diskette drive. What is the name of such computes?a. Home computersb. Diskless computersc. Dedicated computerd. General computerCorrect Answer: a Computer Fundamentals – Fundamentals of Computer Science 9. Which of the following required large computer memory?a. Imagingb. Graphicsc. Voiced. All of aboveCorrect Answer: d Collected and distributed at psExam.com 10. A term associated with the comparison of processing speeds of different computer system is:a. EFTSb. MPGc. MIPSd. CFPSCorrect Answer: c

Set - 20 381. The memory which is programmed at the time it is manufactureda. POMb. RAMc. PROMd. EPROMCorrect Answer: a

Collected and distributed at psExam.com 382. Which of the following memory medium is not used as main memory system?a. Magnetic coreb. Semiconductorc. Magnetic taped. Both a and bCorrect Answer: c Please, point out any mistakes to admin@psexam.com 383. Registers, which are partially visible to users and used to hold conditional, are known asa. PCb. Memory address registersc. General purpose registerd. FlagsCorrect Answer: c Objective Questions - Multiple Choice Questions - MCQs at psExam.com 384. One of the main feature that distinguish microprocessors from micro-computers isa. Words are usually larger in microprocessorsb. Words are shorter in microprocessorsc. Microprocessor does not contain I/O devicesd. Exactly the same as the machine cycle timeCorrect Answer: c Computer Fundamentals – Fundamentals of Computer Science 385. The least significant bit of the binary number, which is equivalent to any odd decimal number, is:a. 0b. 1c. 1 or 0d. 3Correct Answer: a Collected and distributed at psExam.com 386. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?a. Bus controlb. Interruptsc. Bus arbitration

d. StatusCorrect Answer: c Please, point out any mistakes to admin@psexam.com 387. When was the world’s first laptop computer introduced in the market and by whom?a. Hewlett-Packardb. Epson, 1981c. Laplink traveling software Inc. 1982d. Tandy model-2000, 1985Correct Answer: b Objective Questions - Multiple Choice Questions - MCQs at psExam.com 388. The first microprocessor built by the Intel Corporation was calleda. 8008b. 8080c. 4004d. 8800Correct Answer: c Computer Fundamentals – Fundamentals of Computer Science 389. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries/a. Claude Shannonb. Konrard Zuesc. George Stibitsd. Howard H. AikenCorrect Answer: c Collected and distributed at psExam.com 390. Who developed a mechanical device in the 17th century that could add, subtract, multiple, divide and find square roots?a. Napierb. Babbagec. Pascald. LeibnizCorrect Answer: d Please, point out any mistakes to admin@psexam.com 391. IBM 7000 digital computer

a. Belongs to second generationb. Uses VLSIc. Employs semi conductor memoryd. Has modular constructionsCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com 392. An integrated circuit isa. A complicated circuitb. An integrating devicec. Much costlier than a single transistord. Fabricated on a tiny silicon chipCorrect Answer: d Computer Fundamentals – Fundamentals of Computer Science 393. Most important advantage of an IC is itsa. Easy replacement in case of circuit failureb. Extremely high reliabilityc. Reduced costd. Low powers consumptionCorrect Answer: b Collected and distributed at psExam.com 394. The first machine to successfully perform a long series of arithmetic and logical operations was:a. ENIACb. Mark-Ic. Analytic Engined. UNIVAC-1Correct Answer: b Please, point out any mistakes to admin@psexam.com 395. In the third Generation of computersa. Distributed data processing first became popularb. An operating system was first developedc. High level procedural language were first usedd. Online real time systems first become popularCorrect Answer: d Objective Questions - Multiple Choice Questions - MCQs at psExam.com

396. An IBM system/38 represents the computer class of:a. Small scale computerb. Medium scale computerc. Large scale computerd. Super computerCorrect Answer: a Computer Fundamentals – Fundamentals of Computer Science 397. The first firm to mass-market a microcomputer as a personal computer wasa. IBMb. Super UNIVACc. Radio Shaksd. Data General CorporationCorrect Answer: c Collected and distributed at psExam.com 398. A digital computer did not score over an analog computer in terms ofa. Speedb. Accuracyc. Reliabilityd. CostCorrect Answer: b Please, point out any mistakes to admin@psexam.com 399. In 1830, Charles Babbage designed a machine called the analytical engine, which he showed at the parts exhibition. In which year was it exhibited?a. 1820b. 1860c. 1855d. 1970Correct Answer: c Objective Questions - Multiple Choice Questions - MCQs at psExam.com 400. Which was the world’s first minicomputer and when was it introduced?a. PDP-I, 1958b. IBM System/36, 1960c. PDP-II, 1961d. VAX 11/780, 1962Correct Answer: a

___________________*************************************************************************************************************************** 1.A 32-bit address bus allows access to a memory of capacity(a) 64 Mb (b) 16 Mb (c) 1Gb (d) 4 Gb2.Which processor structure is pipelined?a)all x80 processors b) all x85 processorsc) all x86 processors3.In 8086 microprocessor one of the following statements is not true.a)Coprocessor is interfaced in MAX modeb)Coprocessor is interfaced in MIN modec)I/O can be interfaced in MAX / MIN moded)Supports pipelining4.The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.A.control busB.control instructionsC.address decoderD.CPU5.In an 8085 microprocessor, the instruction CMP B has been executed while the contentsof accumulator is less than that of register B. As a result carry flag and zero flag will berespectively(A)set, reset(B) reset, set (C) reset, reset (D) set, set6.To put the 8085 microprocessor in the wait state(i) lower the-HOLD input(ii) lower the READY input(iii) raise the HOLD input(iv) raise the READY input7.Registers, which are partially visible to users and used to hold conditional, are known asa.PC b.Memory address registersc.General purpose registerd.Flag a) Clock b) Data bus width c)Address bus widthd)Size of register 15.The status that cannot be operated by direct instructions isa) Cy b) Z c) P d)AC

16.The number of software interrupts in 8085 is ____ a) 5 b)8c) 9 d) 1017.Adress line for RST 3 isa) 0020H b) 0028H c)0018Hd) 0038H18.The necessary steps carried out to perform the operation of accessing either memory or I/O Device, constitute a ___________________ a) fetch operation b) execute operation c)machine cycled) instructioncycle19.Which is a 8 bit Microprocessor __________ a) Intel 4040 b) Pentium – I c) 8088 d)Motorala MC-680120.Interfacing devices for DMA controller, programmable interval timer are respectively…a)8257, 8253b) 8253, 8257 c) 8257,8251 d)8251,825721.Consider the following set of 8085 instruction.MVI A,82HORA AJP DSPLYXRA ADSPLY:OUT PORT1HLT.The output at PORT1 isa)00Hb) FFH c) 92H d) 11H22.The contents of accumulator before CMA instruction is A5H. Its content after instructionexecution isa) A5H b)5AHc) AAH d) 55H23.In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b)512c) 256 d) 6553624.How many transistors does the 8086 have?a) 10,000b) 29,000c) 110,000d) 129,00025.What generation chip is the Pentium 4 for the Intel central processing units?A. Seventh generationB.Eighth generationMS.R.RAJAKUMARI AP/IT, PMU,VALLAM C.Ninth generationD.Tenth Generation26. The first processor to include Virtual memory in the Intel microprocessor familywas:

a.)80286b.)80386c.)80486d.)Pentium27.Intel Itanium processors are designed fora.Servers and personal computersb.Servers onlyc.Personal computers onlyd.Calculators28.In 8086 microprocessor one of the following instructions is executed before an arithmeticoperationa.AAM b)AADc) DAS d) DAA29.In 8051,After reset the SP register is initialized to address________.a.8H b) 9H c)7Hd) 6H30.Serial port interrupt is generated, if ____ bits are seta) IE b) RI, IE c) IP, TI d)RI, TI 31.In 8051 which interrupt has highest priority?a)IE1 b)TF0 c)IE0d)TF132.When the 8051 is reset and the line is LOW, the program counter points to the first program instruction in the:A.internal code memoryB.external code memoryC.internal data memoryD.external data memory33.In 8051 an external interrupt 1 vector address is of ________ and causes of interrupt if ____.a)000BH, a high to low transition on pin INT1 b)001BH, a low to high transition on pin INT1c) 0013H, a high to low transition on pin INT1d) 0023H, a low to high transition on pin INT134.In a microprocessor, the service routine for a certain interrupt starts from a fixed location of memory which cannot be externally set, but the interrupt can be delayed or rejected. Such aninterrupt is(A)non-maskable and non-vectoredMS.R.RAJAKUMARI AP/IT, PMU,VALLAM

(B)maskable and non-vectored(C)non-maskable and vectored(D)maskable and vectored

35.For the 8085 assembly language program given below, the content of theaccumulator after the execution of the program is3000 MVI A, 45H3002 MOV B, A3003 STC3004 CMC3005 RAR3006 XRA B(A) 00H (B) 45H (C)67H(D) E7H36.An 8255 chip is Interfaced to an 8085 Microprocessor system as an I/O Mapped I/O.The Address lines A0, A1 of 8085 are used by the 8255 chip to decode internally itsthree ports and the control register.The address lines A3-A7 and IO/M signal areused for address decoding. The range of the addresses for which the 8255 chipwould get selected is(a) F8H-FBH(b) F8H-FCH(c)F8H-FFH(d)F0H-F7H37.The TRAP is one of the interrupts available its INTEL 8085. Which one of the followingstatements is true of TRAP?(a)It is level triggered(b)It is negative edge triggered(c)It is positive edge triggered(d)It is both positive edge triggered and level triggered38.In a 16-bit microprocessor, words are stored in two consecutive memory locations. Theentire word can be read in one operation provided the first(a)word is even(b)word is odd(c)memory location is odd(d)memory address is even39.The ESC instruction of 8086 may have two formats. In one of the formats, no memoryoperand is used. Under this format, the number of external op-codes (for the co- processor) which can be specified is?a.64b.128c.256d.51240.DB, DW and DD directives are used to place data in particular location or to simplyallocate space without preassigning anything to space. The DW and DD directories areused to generateMS.R.RAJAKUMARI AP/IT, PMU,VALLAM a.offsets b.full address of variablesc.full address of labelsd.offsets of full address of labels and variables41.When the RET instruction at the end of subroutine is executed,1.the information where the stack is iniatialized is transferred to thestack pointer 2.the memory address of the RET instruction is transferred to the program counter 3.two data bytes stored in the top two locations of the stack aretransferred to the program counter4.two data bytes stored in the top two locations of the stack ar*************************************************************************** Multiple Choice---------------

#1. The minimum number of transistors required to implement a two input AND gate is a. 2b. 4c. 6d. 8Answer: c 2. Using DeMorgan's Theorem we can convert any AND-OR structure into a. NAND-NANDb. OR-NANDc. NAND-NORd. NOR-NANDAnswer: a 3. For a memory with a 16-bit address space, the addressability isa. 16 bitsb. 8 bitsc. 2^16 bitsd. Cannot be determinedAnswer: d 4. Because we wish to allow each ASCII code to occupy one location in memory, most memories are _____ addressable.a. BYTEb. NIBBLEc. WORD (16 bits)d. DOUBLEWORD (32 bits)Answer: a 5. Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. a. Circuit A has more gates than circuit Bb. Circuit B has more gates than circuit Ac. Circuit A has the same number of gates as circuit B (Hint: Construct the truth table for the adder and the multiplier) Answer: a 6. When the write enable input is not asserted, the gated D latch ______ its output.a. can not change

b. clearsc. setsd. complementsAnswer: a 7. A structure that stores a number of bits taken "together as a unit" is aa. gateb. muxc. decoderd. registerAnswer: d 8. We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically completea. set of {AND,OR}b. set of {EXOR, NOT}c. set of {AND,OR,NOT}d. None of the aboveAnswer: c 9. Of the following circuits, the one which involves storage isa. RS Latchb. muxc. nandd. decoderAnswer: a 10. If the number of address bits in a memory is reduced by 2 and theaddressability is doubled, the size of the memory (i.e., the number of bits stored in the memory)a. doublesb. remains unchangedc. halvesd. increases by 2^(address bits)/addressabilityAnswer : c 12. If m is a power of 2, the number of select lines required for an m-input mux is: a. mb. 2^mc. log2 (m)d. 2*mAnswer: c 13. For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

a. less thanb. greater thanc. the same asd . cannot be determinedAnswer: c 14. Which of the following conditions is not allowed in an RS latch? a. R is asserted, S is assertedb. R is asserted, S is negatedc. R is negated, S is assertedd. R is negated, S is negatedAnswer: a 15. Which of the following pair of gates can form a latch?a. a pair of cross coupled ORb. a pair of cross copled ANDc. a pair of cross coupled NANDd. a cross coupled NAND/ORAnswer: c

Set - 1 Question 1:Where does a computer add and compare data?a. Hard diskb. Floppy diskc. CPU chipd. Memory chipCollection on http://www.cs-mcqs.blogspot.com Question 2:Which of the following registers is used to keep track of address of the memory location where the next instruction is located?a. Memory Address Registerb. Memory Data Registerc. Instruction Registerd. Program Register

Question 3:A complete microcomputer system consists ofa. microprocessorb. memoryc. peripheral equipmentd. all of above Collection on http://www.cs-mcqs.blogspot.com Question 4:CPU does not perform the operationa. data transferb. logic operationc. arithmetic operationd. all of above Collection on http://www.cs-mcqs.blogspot.com Question 5:Pipelining strategy is called implementa. instruction executionb. instruction prefetchc. instruction decodingd. instruction manipulation Collection on http://www.cs-mcqs.blogspot.com Question 6:A stack isa. an 8-bit register in the microprocessorb. a 16-bit register in the microprocessorc. a set of memory locations in R/WM reserved for storing information temporarily during the execution of computerd. a 16-bit memory address stored in the program counter Collection on http://www.cs-mcqs.blogspot.com Question 7:A stack pointer is

a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory.b. a register that decodes and executes 16-bit arithmetic expression.c. The first memory location where a subroutine address is stored.d. a register in which flag bits are stored Collection on http://www.cs-mcqs.blogspot.com Question 8:The branch logic that provides decision making capabilities in the control unit is known asa. controlled transferb. conditional transferc. unconditional transferd. none of above Collection on http://www.cs-mcqs.blogspot.com Question 9:Interrupts which are initiated by an instruction area. internalb. externalc. hardwared. software Collection on http://www.cs-mcqs.blogspot.com Question 10:A time sharing system implya. more than one processor in the systemb. more than one program in memoryc. more than one memory in the systemd. None of above Collection on http://www.cs-mcqs.blogspot.com Answers:1. c2. d

3. d4. d5. b6. c7. a8. c9. d10. b

SET-2Question 1:Processors of all computers, whether micro, mini or mainframe must have a. ALUb. Primary Storagec. Control unitd. All of above Question 2:What is the control unit's function in the CPU?a. To transfer data to primary storageb. to store program instructionc. to perform logic operationsd. to decode program instruction Question 3:What is meant by a dedicated computer?a. which is used by one person onlyb. which is assigned to one and only one taskc. which does one kind of softwared. which is meant for application software only Question 4:The most common addressing techiniques employed by a CPU isa. immediateb. directc. indirectd. registere. all of the above Question 5:Pipeline implementa. fetch instruction

b. decode instructionc. fetch operandd. calculate operande. execute instructionf. all of abve Question 6:Which of the following code is used in present day computing was developed by IBM corporation?a. ASCIIb. Hollerith Codec. Baudot coded. EBCDIC code Question 7:When a subroutine is called, the address of the instruction following the CALL instructions stored in/on thea. stack pointerb. accumulatorc. program counterd. stack Question 8:A microprogram written as string of 0's and 1's is a a. symbolic microinstructionb. binary microinstructionc. symbolic microprogramd. binary microprogram Question 9:Interrupts which are initiated by an instruction area. internalb. externalc. hardwared. software Question 10:Memory access in RISC architecture is limited to instructionsa. CALL and RETb. PUSH and POPc. STA and LDAd. MOV and JMP

Answers: 1. d 2. d 3. b 4. e 5. f 6. d 7. d 8. d 9. b 10. c

SET-3

Set - 3 Question 1:A collection of 8 bits is calleda. byteb. wordc. record Question 2:The ascending order or a data Hierarchy is a. bit - bytes - fields - record - file - databaseb. bit - bytes - record - field - file - databasec. bytes - bit- field - record - file - databased. bytes -bit - record - field - file - database Question 3:How many address lines are needed to address each memory locations in a 2048 x 4 memory chip?a. 10b. 11c. 8d. 12 Question 4:A computer program that converts an entire program into machine language at one time is called a/ana. interpreterb. simulatorc. compilerd. commander

Question 5:In immediate addressing the operand is placeda. in the CPU registerb. after OP code in the instructionc. in memoryd. in stack Question 6:Microprocessor 8085 can address location upto a. 32Kb. 128Kc. 64Kd. 1M Question 7:The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. What is it called?a. monochipb. microprocessorc. ALUd. control unit Question 8:When the RET instruction at the end of subroutine is executed,a. the information where the stack is iniatialized is transferred to the stack pointerb. the memory address of the RET instruction is transferred to the program counterc. two data bytes stored in the top two locations of the stack are transferred to the program counterd. two data bytes stored in the top two locations of the stack are transferred to the stack pointer Question 9:A microporgram is sequencer perform the operation a. readb. writec. executed. read and writee. read and execute Question 10:Interrupts which are initiated by an I/O drive area. internalb. externalc. software

d. all of above

Answers: 1. a 2. a 3. b 4. c 5.b 6.c 7.b 8.c 9.e 10.b 1. A central processing unit, fabricated on a single chip of semiconductor is called: a. Microprocessorb. RAMc. ROMd. None of these 2. Which is the architecture of microprocessor: a. CISCb. RISCc. All of thesed. None of these 3. CISC stands for:a. Complex Instruction System Computerb. Complex Instruction Set Carc. Complex Instruction Set Computerd. None of these4. RISC stands for:a. Reduced Instruction Set Computerb. Reduced Intergraded Set Computerc. Resource Instruction Set Computerd. Resource Instruction System Computer5. Which is the components of computer: a. System Busb. CPUc. Memory Unitd. All of these

6. System Bus Contains: a. Address Busb. Data Busc. Control Busd. All of these 7. Microprocessor is the _____ of computer: a. Handb. Heartc. Braind. Leg 8. Microprocessor is fabricated on single chip using: a. MOSb. ALUc. CPUd. All of these 9. Which is the components of microprocessor: a. Register unitb. Arithmetic and logical unitc. Timing and control unitd. All of these 10. Which is an integral part of any microcomputer system and its primary purpose is to hold program and data: a. Memory unitb. Register unitc. A and Bd. None of these 11. How many group of memory unit:

a. Fourb. Threec. Twod. One 12. Which is the parts of memory unit: a. Processor memoryb. Main memoryc. Secondary memoryd. All of these 13. MOS stand for: a. Metal oxide semiconductorb. Memory oxide semiconductorc. A and Bd. None of these 14. Which system communicates with the outside word via the I/O devices interfaced to it: a. Microprocessorb. Microcomputerc. Digital computerd. All of these 15. A computer which has the microprocessor as______ is called as a microcomputer: a. CPUb. ALUc. RU d. None of these 16. The organization of I/O devices create a difference between _____:

a. Digital computerb. Micro computerc. A and Bd. None of these 17. How many generation of microprocessor: a. Fourb. Fivec. Sixd. Three 18. The___ was very successful in the calculator market at that time: a. Motorola 6800 and 6809b. Microprocessor 4004c. Intel 8085d. None of these 19. How are the successful microprocessor: a. 8004b. 5006c. 4004d. All of these 20. How many microprocessor in the market during the same period: a. 6b. 8c. 3d. 5 21. PMOS stands for:a. P-channel metal-oxide-semiconductorb. P-channel memory –oxide-semiconductorc. Both A and Bd. None of these

22. Which provided the current: a. Low-costb. Slow-costc. Low-Outputd. All the above 23. Second Generation_____? a. 1974-1976b. 1974-1978c. 1974-1972d. None of these 24. The beginning of very efficient____ microprocessor in second generation: a. 4-bitb. 8-bitc. 16-bitd. 64-bit 25. Which are some of popular processor: a. Motorola 6800 and 6809b. Intel 8085c. Zilog Z80d. All the above 26. NMOS stands for:a. N-channel metal-oxide-semiconductorb. P-channel metal-oxide-semiconductorc. N-channel memory-oxide-semiconductord. All the above27. _____ Was more common year: a. CRTb. TTLc. Both A and Bd. None of these

28. Which technology speed faster and higher density: a. PMOSb. NMOSc. HMOSd. All the above 29. What is the period of 3 generation: a. 1979-1981b. 1979-1980c. 1978-1979d. 1978-1980 30. Third generation microprocessor is dominated by____ microprocessor: a. 8 bitb. 4 bitc. 16 bitd. 64 bit 31. Intel used HMOS technology to recreate_____: a. 8084 Ab. 8086 Ac. 8085 Ad. 8088 A 32. HMOS stands for:a. High performance metal oxide semiconductorb. High processor metal oxide semiconductorc. Both A and bd. None of these33. What is the period of fourth generation: a. 1979-1980b. 1981-1995

c. 1995-2000d. 1974-1980 34. The fourth generation of microprocessor came really as a soon boon to the_____: a. Computing environmentb. Processing environmentc. Hot environmentd. All of these 35. How many bit microprocessor in the era marked beginning of fourth generation: a. 4 bitb. 8 bitc. 16 bitd. 32 bit 36. They were fabricated using a low power version of the HMOS technology called____: a. HSMOSb. HCMOSc. HSSOMd. None of these 37. Motorola introduced _____ processor: a. 2 bit-RISCb. 4 bit-RISCc. 8 bit-RISCd. 32 bit-RISC 38. Motorola introduced 32 bit RISC processor called______: a. MC 88100b. MC 81100c. MC 80100d. MC 81000

39. Period of fifth generation? a. 1974-1978b. 1979-1980c. 1981-1985d. 1995-till date 40. The growth of vacuum tube technology has been listed as follow: a. 1946-1957b. 1958-1964c. 1985-1999d. None of these 41. The growth of transistor technology in_____: a. 1946-1957b. 1958-1964c. 1985-1999d. None of these 42. How are the growth of SSI technology in_____: a. 1956 on wordsb. 1965 on wordsc. 1978 on wordsd. 1978 on words 43. The growth of medium scale integration in______: a. Till 1971b. Till 1970c. Till 1972d. Till 1969 44. The growth of SSI up to____:

a. 100 device on a chipb. 200 device on a chipc. 300 device on a chipd. 400 device on a chip 45. The growth of LSI technology on_____: a. 1994-1995b. 1971-1977c. 1972-1978d. None of these 46. Which is most commonly measured in terms of MIPS previously million instruction per second: a. Microprocessorb. Performance of a microprocessorc. Assembly lined. None of these 47. The range of this rating for which microprocessor of_____: a. VLSIb. Motorolac. Inteld. Zilog 48. How can we make computers work faster? a. The fetch-execute cycle and pipeliningb. The assemblyc. Both A and Bd. None of these 49. Who is the represents the fundamental process in the operation of the CPU: a. The fetch-execute cycle and pipeliningb. The assembly

c. Both A and B d. None of these 50. Which process information at a much faster rate than it can retrieve it from memory: a. ALUb. Processorc. Microprocessord. CPU 51. _____ memory system which is discussed later can improve matters in this respect: a. Data memoryb. Cache memoryc. Memoryd. None of these 52. The fetch-execute cycle is to use a system know as: a. Assembly lineb. Pipeliningc. Cached. None of these 53. The time taken for all stages of the assembly line to become active is called the: a. Flow through timeb. Clock periodc. Throughputd. All of these 54. The clock period is denoted by: a. T pb. T1+T2+T3-------+T nc. Ptd. None of these

55. Ti is the time taken for the ith stage and there are n stages in the: a. Throughputb. Assembly linec. Both A and Bd. None of these 56. Who is the determined by the time taken by the stages the requires the most processing time: a. Clock periodb. Flow throughc. Throughputd. None of these 57. The ____ of can assembly line to be I/t p: a. Clock periodb. Pipeliningc. Throughputd. Flow through 58. Which is the microprocessor launched by Motorola corporation introduced: a. Mc6800b. 8080c. IMP-8d. RPS-8 59. How many bit MC6800 microprocessor: a. 4-bitb. 8-bitc. 16-bitd. 32-bit

60. Motorola has declined from having nearly __________ share of the microprocessor market to much smaller share: a. 30%b. 40%c. 50%d. 60% 61. Which is the microprocessor launch by Fairchild company: a. F-6b. F-8c. Both A and Bd. None of these 62. How many stages has fetch execute cycle: a. 3b. 4c. 5d. 6 63. Which is the world’s first microprocessor? a. Intel 4004b. Motorola 68020c. Intel8008d. None of these 64. MOSFET stands for?a. Metal-oxide-semiconductor field effect transistorb. Metal-oxide-semiconductor fan effort transistorc. Both A and Bd. None of these65. What is the main problem of Intel 4004 microprocessor: a. Speedb. Memory sizec. World width

d. All of these 66. The evolution of the 4 bit microprocessor ended when Intel released in: a. 4004b. 8008c. 40964d. 4040 67. How many bit microprocessor still survives in low-end application such as microwave ovens and small control system: a. 4 bitb. 16 bitc. 32 bitd. 64 bit 68. Calculator are based on______ microprocessor: a. 4 bitb. 16 bitc. 32 bitd. 64 bit 69. BCD stands for: a. Binary coded decimalb. Based coded decimalc. Both A and Bd. None of these 70. Intel 8008 microprocessor realizing in: a. 1971b. 1973c. 1999d. 1988

71. Intel 8008 microprocessor’s upgraded version is: a. 8080b. 4004c. Both A and Bd. None of these 72. Intel 8008 microprocessor was introduced in: a. 1971b. 1973c. 1999d. 1988 73. MC6800 microprocessor was introduced by: a. Motorola corporationb. Fairchildc. Both A and Bd. None of these 74. Which Microprocessor producer continue successfully to create newer and improved version of the microprocessor: a. Intelb. Motorolac. Both A and Bd. None of these 75. Motorola has declined how many % share of the microprocessor market to a much smaller share: a. 50%b. 55%c. 48%d. 51%

76. Which year Intel corporation introduced an updated version of the 8080- the 8085: a. 1965b. 1976c. 1977d. 1985 77. In 1977 which corporation introduced an updated version of the 8080- the 8085: a. Motorolab. Intelc. Rockwelld. National 78. How many bit microprocessor developed by Intel: a. 4 bitb. 8 bitc. 32 bitd. 64 bit 79. Which is the main feature of 8085: a. Internal clock generatorb. Internal system controllerc. Higher clock frequencyd. All of these 80. Which is 16 Bit microprocessor: a. 8088b. 8086c. 8085d. All of these 81. How many speed of 8088,8085,8086 microprocessor:a. 2.5 Million instruction per secondb. 1.5 Million instruction per second

c. 3.5 Million instruction per secondd. 1.6 Million instruction per second82. Which year Intel family ensured: a. 1965b. 1978c. 1981d. 1999 83. Which corporation decided to use 8088 microprocessor in personal computer: a. IBMb. CRTc. PMNd. SPS 84. Which processor provided 1 MB memory: a. 16-bit 8086 and 8088b. 32-bit 8086 and 8088c. 64-bit 8086 and 8088d. 8-bit 8086 and 8088 85. Who was introduce the 80286 microprocessor updated on 8086,in 1983: a. Intelb. Motorolac. Fairchildd. None of these 86. Which is the microprocessor launched by Intel: a. Z-8b. 8080c. 8000d. None of these 87. Which is the microprocessor launched by national semiconductor:

a. IMP-4b. IMP-8c. IMP-6d. IMP-7 88. Which is the microprocessor launched by Rockwell international: a. RPS-4b. RPS-6c. RPS-8d. All of these 89. Which is the microprocessor launched by Zilog: a. Z-2b. Z-4c. Z-6d. Z-8 90. CAD stands for: a. Computer aided draftingb. Compare aided draftingc. Both A and Bd. None of these 91. GUI stands for: a. Graphical user interfaceb. Graph used Intelc. Graphical use interd. None of these 92. VGA stands for: a. Visual graph area

b. Visual graphics arrayc. Visual graph acceptd. All of these 93. Pentium Pro Processor contains: a. L1 Cacheb. L2 Cachec. Both L1 & L2d. None of these 94. L1 cache memory is places at ______ a. On Processorb. On Mother Boardc. On Memoryd. All of these 95. L2 cache memory is places at ______ a. On Processorb. On Mother Boardc. On Memoryd. All of these 96. Pentium Pro can address _____ of memory: a. 4 GBb. 128 GBc. 256 GBd. 512 GB 97. Which is the professional or Business version of Intel Processors: a. Pentium IIb. Pentium Proc. Pentium MMXd. Pentium Xeon

98. Pentium III processor is released in the form of:a. Socket 370 Versionb. Slot 1 Version in Plastic Cartridgec. Both a and bd. None of these99. What is the maximum clock speed of P III processors a. 1.0 GHzb. 1.1 GHzc. 1.2 GHzd. 1.3 GHz 100. Power PC microprocessor architecture is developed by: a. Appleb. IBMc. Motorolad. All of these 101. Which is not the main architectural feature of Power PC:a. It is not based on RISCb. Superscalar implementationc. Both 32 & 64 Bitd. Paged Memory management architecture102. Alpha AXP is developed by: a. DECb. IBMc. Motorolad. Intel 103. Which is not the main feature of DEC Alpha:a. 64 Bit RISC processorb. Designed to replace 32 VAX(CISC)c. Seven stage split integer/floating point pipelined. Variable Instruction length104. Which is not the open-source OS:

a. Debianb. BSD Unixc. Gentoo & Red Hat Linuxd. Windows 105. ISA stands for: a. Instruct set areab. Instruction set architecturec. Both a and bd. None of these 106. RISC stands for:a. Reduced Instruction set computerb. Reduced Instruct set comparec. Reduced instruction stands computerd. All of these107. DEC stands for: a. Digital electronic computer b. Digital electronic corporationc. Digital equipment corporationd. None of these 108. How many architectural paradigms in microprocessor: a. 2b. 3c. 4d. 6 109. Which are the architectural paradigms in microprocessor: a. RISCb. CISCc. PISCd. A and B

110. CISC stands for:a. Complex instruction set computerb. Camper instruct set of computerc. Compared instruction set computerd. None of these111. PC’s use____ based on this architecture: a. CPUb. ALUc. MUd. None of these 1. EOC stands for:

a. End of conversionb. Emphasize of conversionc. End of controllerd. None of these

2. IRR stands for:a. Interrupt request registerb. Input request registerc. Interrupt resolver registerd. Input resolver register

3. ISR stands for:a. Interrupt service registerb. Input service registerc. In-service registerd. All of these

4. PR stands for:a. Priority registerb. Priority resolverc. Priority requestd. None of these

5. IMR stands for:a. Input mask registerb. Input mask resolverc. Interrupt mask resolverd. Interrupt mask register

6. INT stands for:a. Inputb. Interruptc. Both a and bd. None of these

7. INTA stands for:a. Interrupt acknowledgeb. Interrupt accessc. Interrupt address

d. None of these8. CS stands for:

a. Command selectb. Chip selectc. Chip seriesd. Command series

9. RD stands for:a. Readb. Registerc. Requestd. Real

10. ICW stands for:a. Interrupt command wordsb. Interrupt command writec. Initialization command wordsd. Initialization command write

11. OCW stands for:a. Operational command wordsb. Operational conjunction wordsc. Operational control wordsd. Operational cost words

12. DMA stands for:a. Direct memory allocationb. Direct memory accessc. Direct memory applicationd. Direct memory acknowledgment

13. HLD stands for:a. Highb. Hourc. Holdd. None of these

14. HLDA stands for:a. High acknowledgmentb. Hold acknowledgmentc. High accessd. Hold access

15. HRQ stands for:a. Hold requestb. Hold readc. Hold registerd. Hold resolver

16. AEN stands for:a. Address enableb. Address equivalentc. Acknowledgment enabled. Acknowledgment equivalent

17. ADSTB stands for:a. Access strobe

b. Access strobec. Address stored. Address strobe

18. MEMER and MEMW means:a. Memory readb. Memory writec. Both a and bd. None of these

19. HRQ and HLDA means:a. Hold requestb. Hold acknowledgmentc. Both a and bd. None of these

20. ADC stands for:a. Analogue to analogue convertersb. Analogue to digital convertersc. Digital to digital convertersd. Digital to analogue converters

21. DAC stands for:a. Analogue to analogue convertersb. Analogue to digital convertersc. Digital to digital convertersd. Digital to analogue converters

22. Which is the commonly used programmable interface and particular used to provide handshaking:

a. 8251b. 8254c. 8259d. 8255

23. Which is a programmable communication interface:a. 8255b. 8254c. 8251d. 8259

24. Which programmable timer is used to generate timing signal :a. 8255b. 8254c. 8251d. 8259

25. Which is widely used in interrupt controller with a number of microprocessor:a. 8251b. 8254c. 8255d. 8259

26. Which are used DMA controllers with 8085/8086 microprocessor:a. 8237b. 8257c. Both a and b

d. None of these27. Which provide a mechanism to establish a link between the microprocessor and i/o device:

a. Input interfaceb. Output interfacec. Both a and bd. None of these

28. In which the processor uses a protection of the memory address to represent I/O ports:

a. Memory mapped I/Ob. I/O memory mappedc. Both a and bd. None of these

29. The standard I /O is also called:a. I/O mapped I/Ob. Isolated I/Oc. Both a and bd. None of these

30. The processor of knowing the status of device and transferring the data with matching speeds is called:

a. Handshakingb. Peripheralc. Portsd. None of these

31. Which is designed to automatically manage the handshake operation:a. 8251b. 8254c. 8255d. 8259

32. Which mode is used for single handshake in 8255:a. Mode 0b. Mode 1c. Mode 2d. None of these

33. Which mode is used for double handshake in 8255:a. Mode 0b. Mode 1c. Mode 2d. None of these

34. Which mode is used for simple input or output without handshaking:a. Mode 0b. Mode 1c. Mode 2d. None of these

35. Which are used for port B in 8255:a. PC0-PC2b. PC3-PC7c. PC6-PC7

d. PC3-PC536. Which are used for port A in 8255 mode 1:

a. PC0-PC2b. PC3-PC7c. PC6-PC7d. PC3-PC5

37. Which are used for handshake lines for port A in 8255 mode 2:a. PC0-PC2b. PC3-PC7c. PC6-PC7d. PC3-PC5

38. AL&99H which operation is performed here:a. Inputb. Outputc. Both a & bd. None of these

39. 34H&AX which operation is performed here:a. Inputb. Outputc. Progressd. None of these

40. Which chip used for AD&DA converters in 8086 processor:a. 8251b. 8255c. 8254d. 8259

41. The time taken by the ADC from the active edge of SOC pulse till the active edge of EOC signal is called:

a. Conversion overb. Conversion delayc. Conversion signald. None of these

42. Arrange the flowing step of the general algorithm for ADC interfacing: i. Issuing start of conversion pulse to ADC. ii. Marking the end of the conversion processes by the. iii. Read digital data output of the ADC as equivalent digital output. iv. Ensuring the stability of analogue input applied to the ADC.

a. 2,1,3,4b. 4,1,2,3c. 1,2,3,4d. 4,3,2,1

43. Which chip is used for analogue to digital converter:a. 0809b. 0808

c. Both a & bd. None of these

44. Which multiplexer by ADC 0808/0809:a. 2:4b. 3:8c. 4:16d. None of these

45. Which chip is used for DAC:a. AD7521b. AD7522c. AD7523d. AD7524

46. Which converters convert binary number into their equivalent voltages:a. Analogue to analogueb. Analogue to digitalc. Digital to digitald. Digital to analogue

47. An external feedback resistor acts to control the:a. Gainb. Gatec. Lossd. Profit

48. Which used to generate accurate time delays and can be used for other timing application such as a real time clock an event counter a digital one shot a square wave generator and a complex wave form generator:

a. 8251 programmable timerb. 8255 programmable timerc. 8254 programmable timerd. 8259 programmable timer

49. 8254 programmable timer counter has two inputs signals:a. CLKb. Gatec. Both a & bd. None of these

50. 8254 programmable timer counter has:a. 1output signalb. 2output signalc. 3output signald. 4output signal

51. 8254 can operate how many operating modes:a. 2b. 4c. 6d. 8

52. 8254 gate of a counter is to either:a. Enable countingb. Disable countingc. Both

d. None of these53. 8254 counters can count in the:

a. Binaryb. Decimalc. Hexadecimald. A & B

54. How many modes in 8254:a. 2b. 4c. 6d. 8

55. Which is the state of gate signal for normal contains:a. Lowb. Highc. Undefinedd. None of these

56. Which generate an interrupt to the microprocessor after a certain interval of time:

a. 8251b. 8254c. 8255

d. 8259

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