aplikasi teknologi informasi dalam pendidikan bahan kuliah program studi manajemen pendidikan-s2...
TRANSCRIPT
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Aplikasi Teknologi Informasi Dalam Pendidikan
Bahan Kuliah Program Studi Manajemen Pendidikan-S2Program Pascasarjana Universitas Ahmad Dahlan
Dosen: Drs. Muchlas, M.T.
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Pertemuan Ke-3:Pengenalan Perangkat Keras
Komputer
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Tujuan:
Mahasiswa dapat:• menjelaskan trend perkembangan komputer• mengidentifikasi jenis sistem komputer yang
banyak digunakan saat ini• mengidentifikasi komponen-komponen utama
sistem komputer• menjelaskan cara kerja sistem komputer • Mengidentifikasi kebutuhan perangkat keras untuk
mendukung kegiatan pendidikan• menyebutkan spesifikasi komputer sesuai
kebutuhan pendidikan
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MAINFRAME
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Mainframe: Mark I (1944)
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Mainframe: ENIAC (1946)
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Mainframe: UNIVAC (1952)
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Univac computer: Predicts an election 1952
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IBM 701 (1952)
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IBM 360 (1964)
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Movie of Mainframe
Desk Set was a major motion picture from 1957 starring Spencer Tracy and Katherine Hepburn.
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Roll Tape in Mainframe
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Using Mainframe to Control Rocket
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The Time-Sharing Computer User
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Remote Terminals Take Control
Mai
nfra
me
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Terminals in Mainframe
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Terminals in Mainframe
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MainframeComputers
Microcomputers
Earliest systems:Bigger Size, More Expensive TimesharingMultitasking
Smaller, Cheaper, Faster, More Realiable, Easy to Purchase, Easy to MaintainTimesharingMultitasking
Trends of Computer System
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Mainframes to Networks
• The mainframe– Central computer timesharing and multitasking– CRT or dumb terminals accessing– No local processing capabilities
• LAN – Local area network– Central computer as a server (Often another PC)– Local computers accessing the network– Software on both machines.– Local processing capabilities
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Mainframes to Networks
MA
INF
RA
ME
NE
TW
OR
K
PC/Microcomputer
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Microcomputer
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Earliest microcomputers
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Earliest microcomputers: Apple II
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Earliest microcomputers: Portable
“Might fit under the seat in a plane” 35 lbs ??
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Microcomputer Systems• Handheld Computers
– PDA, Information Appliances
• Notebook Computers• Desktop Computers• Workstations
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Komputer Saat Ini: Laptop vs Desktop
Lihat video ini:• http://youtu.be/qKb1tFkJBsU• http://youtu.be/kMRDmkFsUZs
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Laptop Desktop Computer=Personal Computer (PC)
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Hardware of a modern personal computer:
1. Monitor2. Motherboard3. CPU4. RAM5. Expansion cards6. Power supply7. Optical disc drive8. Hard disk drive9. Keyboard10. Mouse
Hardware of a Modern PC
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Hardware of a Modern PC
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Structure of Computer System
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Central Processing Unit
OutputDevices
CacheMemory
Primary Storage
SecondaryStorageDevices
ControlUnit (CU)
Arithmetic Logic Unit
(ALU)
SpecialPurposeProcessors
Output Devices
InputDevices
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Structure of Computer System
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Input Technology Trends
FirstGeneration
FirstGeneration
SecondGeneration
SecondGeneration
ThirdGeneration
ThirdGeneration
FourthGeneration
FourthGeneration
FifthGeneration
FifthGeneration
Punched Cards
Paper Tape
Punched Cards
Paper Tape
Punched Cards
Punched Cards
Key to Tape/Disk
Key to Tape/Disk
Keyboard Data EntryPointing DevicesOptical Scanning
Keyboard Data EntryPointing DevicesOptical Scanning
Voice RecognitionSpeech and
Touch DevicesHandwriting Recognition
Voice RecognitionSpeech and
Touch DevicesHandwriting Recognition
Trend: Towards Direct Input Devices that Are More Naturaland Easy to Use
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Common Input Devices
Keyboardhttp://youtu.be/o4H931A3BDE
Mouse
Webcam
Touch Screen
Mic Scanner
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Variety of KeyboardPS2 Keyboard USB Keyboard Wireless KeyboardSerial Keyboard
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Variety of Mouse
PS2 Mouse USB Mouse Wireless MouseSerial Mouse
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Output Technology Trends
FirstGeneration
FirstGeneration
SecondGeneration
SecondGeneration
ThirdGeneration
ThirdGeneration
FourthGeneration
FourthGeneration
FifthGeneration
FifthGeneration
Punched Cards
Printed Reportsand Documents
Punched Cards
Printed Reportsand Documents
Punched Cards
Printed Reports and Documents
Punched Cards
Printed Reports and Documents
Printed Reportsand DocumentsVideo Displays
Printed Reportsand DocumentsVideo Displays
Video DisplaysAudio ResponsesPrinted Reportsand Documents
Video DisplaysAudio ResponsesPrinted Reportsand Documents
Video DisplaysVoice Responses
Hyperlinked MultimediaDocuments
Video DisplaysVoice Responses
Hyperlinked MultimediaDocuments
Trend: Towards Output Methods that Communicate Naturally,Quickly, and Clearly
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Common Video Output Devices (Monitor=Screen=Display=VDU)
Cathode-Ray Tube (CRT) Liquid Crystal
Display (LCD)
Organic Light Emitting Diode
(OLED)
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Common Printed Output Devices
Inkjet Printer Laser PrinterDot Matrix Printer
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Common Audio Output Devices
Headset Speaker
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Storage Trends
FirstGeneration
FirstGeneration
SecondGeneration
SecondGeneration
ThirdGeneration
ThirdGeneration
FourthGeneration
FourthGeneration
FifthGeneration
FifthGeneration
Magnetic Drum
Magnetic Drum
MagneticCore
MagneticCore
MagneticCore
MagneticCore
LSI SemiconductorMemory Chips
LSI SemiconductorMemory Chips
VLSI SemiconductorMemory Chips
VLSI SemiconductorMemory Chips
Trend: Towards Large Capacities Using Smaller Microelectronic Circuits
Trend: Towards Massive Capacities Using Magnetic and Optical Media
Magnetic TapeMagnetic DrumMagnetic TapeMagnetic Drum
Magnetic TapeMagnetic DiskMagnetic TapeMagnetic Disk
Magnetic DiskMagnetic TapeMagnetic DiskMagnetic Tape
Magnetic DiskOptical Disk
Magnetic Tape
Magnetic DiskOptical Disk
Magnetic Tape
Optical DiskMagnetic DiskOptical Disk
Magnetic Disk
PrimaryStoragePrimaryStorage
SecondaryStorage
SecondaryStorage
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Data representation in a computer
• “Two state” or binary representation – negative / positive electronic charges?– A bit – negative or positive – zero or one– ASCII or EBCIDIC coding schemes
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How many bytes and bits?
• “Mary Smith”
• “Mary J. Smith”
• 04/01/2004
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Definitions of storage size
• 1 bit = 0 or 1• 8 bits = 1 byte (character)• 1 k = 1,000 bytes (kilobyte)• 1 mb = 1,000,000 (megabyte)• 1 gb = 1,000,000,000 (gigabyte)
– 20 meters of shelved books
• 1 tb = 1,000,000,000,000 (terabyte)– A complete research library
• 1 pb = 1,000,000,000,000,000 (petabyte)– 2b = all U.S. academic research libraries
• 1 ex - 1,000,000,000,000,000,000 (exabyte)
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Data storage and retrieval forms
• RAM = random or direct access memory– Fast, lost when power down
• DASD – direct access storage devices– Disk drives – slower but still quite fast– Direct reads to sectors and tracks
• Magnetic tapes– Slower, cheaper, sequential access
• Direct or random access – specific storage positions based on data defined locations– Example: credit card records – card id
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Semi Conductor Memory
• Random access memory (RAM)– Increases over time driven by operating
systems and applications software
• Read only memory (ROM)– Permanent storage of commonly executed
instructions – not volatile– “Firmware” …
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Magnetic disk storage
• Floppy disks – 3.5 inch = 1.44 mb– Superdisk – 120 mb
• Hard disk drives – 100’s of gigabytes• RAID storage – redundant arrays of
independent disks– 6 to 100 + small hard disks– Redundant design of data storage– Fault tolerant capacity – less risk of loss
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Other storage forms
• Magnetic tapes– used for backup– Sequential access– Cartridge or real to real
• Optical disk storage– CD-ROM : compact disk read only memory– CD-R – record once– CD-RW – rewriteable disk– DVD – digital video disk
• 3 to 8.5 gb -
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Primary & Secondary Storage Media
SemiconductorMemory
SemiconductorMemory
MagneticDisks
Floppy DiskHard Disk, RAID
MagneticDisks
Floppy DiskHard Disk, RAID
Magnetic TapeMagnetic Tape
Optical DisksCD-ROM, CD-R
CD-RWDVD
Optical DisksCD-ROM, CD-R
CD-RWDVD
Acc
ess
Spee
d In
crea
ses
Stor
age
Cap
acity
Dec
reas
es
Cos
t per
Bit
Incr
ease
s
Direct Access
SequentialAccess
Direct Access S
eco
nd
ary
Sto
rag
ePri
mary
Sto
rag
e
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Contoh Spesifikasi Komputer
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Dual Core (2.5 Ghz) TRAYMainboard ASUS/Gigabyte/ECS Memory DDR2 V-gen 2 Gb PC 5300Harddisk 160 Gb Seagate/Maxtor SATAKeyboard + Mouse SimbaddaCasing ATX 450w + 2 FAN CPULCD Monitor LG/Samsung Wide Screen 17″VGA PCI-Express Digital Alliance 9500GT Super 1Gb DDR2 256Bit