my project.pptx
TRANSCRIPT
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Topics to beCovered:
Introduction tocomputersCharacteristics ofComputers
The Computers Systems
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ACKO!"#$#%#T
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Arithmetic Operations
Invo*ve the genera* mathematica*ca*cu*ation *i+e addition,subtraction, mu*tip*ication and
division.
"ogica* Operations
Invo*ve comparison *i+e - /etc.
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0o1 does Computers1or+)
Input
(rocess
Output
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I('T :
O'T('T:
Consists of $ATA 2 IST&'CTIO.
(&OC#S
S :
Is a set of instruction stored in thecomputers to carry out the instructionsgiven by the user. The process is a*soca**ed (&O3&A%
Is the set of resu*ts generated after
processing the Input.
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C0A&ACT#&ISTIC
SOF
CO%('T#&
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S(##$
The speed 1ith 1hich the computer1or+ can be understood by theunits of measurement of time
1ithin a computer. They are:
%I""I S#CO$ 6 78 7999T0 OF A S#CO$
%IC&O S#CO$ 6 78 7999T0OF A %I""I S#CO$AO S#CO$ 6 78 7999T0 OF A %IC&O S#CO$
(ICO S#CO$ 78 7999T0 OF A AO S#CO$
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STO&A3#:
As a*ready discussed a computercan store a *arge vo*ume ofinformation.
The factors to be considered forstorage are:
TI5A" 6 I%%#$IAT#
S(AC# 6 5#&4 "ITT"#%#$IA 6 %A3#TIC %#$IA
"O3I5IT4 6 FO& #5#&
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ACC'&CC4
The accuracy of the computers isconsistent*y high. #rrors in themachinery may occur, but due
to ecient error;detectingtechni
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5#&SATI"IT4
Computers seem capab*e ofperforming any tas+, providedthe tas+ can be bro+en to a series
of *ogica* steps.The computer actua**y performs :
#=changes information
Transfers data (erforms arithmetica*
operations.
(erforms operations of
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A'TO%ATIO
Once a program to perform aparticu*ar tas+ is stored in thecomputer, the individua*
instructions in the program arecarried out one after the otherautomatica**y to comp*ete the tas+.
0ence the user reust presscertain +eys and give the datainput. The data is automatica**yprocessed to produce the output.
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$I"I3#C#
Being a machine, a computer doesnot su?er from the human traits oftiredness and *ac+ of concentration.
If @ mi**ion ca*cu*ations are to beperformed, it 1i** perform a** ofthem, even the *ast on 1ith e=act*ythe same accuracy and speed.
Some computers 1hich are constant*yon for hours, days, months andyears are never s1itched o?.
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Computers System
A system of interconnectedcomputers that share a centra*storage system and various
periphera* devices such as aprinters, scanners or routers.#ach computer connected to the
system can operateindependent*y, but has the abi*ityto communicate 1ith othere=terna* devices and computers.
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Woring of Com!"ter #$#tem%
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The computer system has oneor more in!"t#to provide data.
This data is then !roce##e&in
some 1ay.The outcome of the processingis sent to an o"t!"tor it may
#tore&unti* some eventhappens to cause it to be output.
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For processing to ta+e p*ace, there needs to be a set ofinstruction of 1hat needs tobe done. This set ofinstruction is ca**ed
!rogram.This system is ca**ed astored program computer.
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Categories of Computers
Micro com!"ter# (ersona* Computers, $es+top computers
oteboo+, "aptop, (a*mtop
'se by one person at a timeMini com!"ter# Faster speed
%any users at the same time
Mainframe com!"ter#
0igh computation po1er S"!er Com!"ter# 0ighest computation po1er
'sed for scientic research 2 $efence.
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%ini Computers
They are a*so sma** genera*purpose system. They aregenera**y more po1erfu* and
most usefu* as compared to microcomputers. %ini computers area*so +no1n as %id range
computers or Chil&Com!"ter#.
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%ainframe Computers
%ainframe computers are thosecomputers that o?er fasterprocessing and greater storage
area. The 1ord Emain framecomes from the menta* frames. Itis a*so +no1n as (ather
Com!"ter#.
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