Types of Computers Sem2

8/10/2019 Types of Computers Sem2

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SEMINAR PRESENTATIONON

TYPES OF COMPUTERS

L.VENUGOPAL REDDY Lec. InComputer Science


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!oftware

A computer program that tells the computer how to perform

particular tas"s.

#etwor"

Two or more computers and other devices that are

connected, for the purpose of sharing data and programs.

$eripheral devices

%sed to e&pand the computer's input, output and storage

capa(ilities


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Input )hatever is put into a computer system.

*ata +efers to the sym(ols that represent facts, o(ects, or ideas.

Information The results of the computer storing data as (its and (ytes the words,

num(ers, sounds, and graphics.

-utput

Consists of the processing results produced (y a computer. $rocessing

anipulation of the data in many ways.

emory Area of the computer that temporarily holds data waiting to (e

processed, stored, or output.

!torage Area of the computer that holds data on a permanent (asis when it is

not immediately needed for processing.


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Types of Computers


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icrocomputer

A personal computer designed to meet the computer needs of anindividual.

$rovides access to a wide variety of computing applications, such

as word processing, photo editing, e/mail, and internet.


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*es"top icrocomputer

A microcomputer that fits on a des" and runs on power from an

electrical wall outlet.

The C$% can (e housed in either a vertical or a hori0ontal case.

Has separate components 1"ey(oard, mouse, etc.2 that are each

plugged into the computer.


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3aptop Computer

A porta(le, compact computer that can run on an electrical wall

outlet or a (attery unit.

All components 1"ey(oard, mouse, etc.2 are in one compact unit.

%sually more e&pensive than a compara(le des"top.

!ometimes called a #ote(oo"


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)or"station

$owerful des"top computer designed for speciali0ed tas"s.

Can tac"le tas"s that re4uire a lot of processing speed.

Can also (e an ordinary personal computer attached to a 3A# 1local

area networ"2.


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!upercomputer

A computer that was the fastest in the world at the time it was

constructed.

Can tac"le tas"s that would not (e practical for other computers.

Typical uses

Brea"ing codes

odeling weather systems


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ainframe

3arge e&pensive computer capa(le of simultaneously processing

data for hundreds or thousands of users.

%sed to store, manage, and process large amounts of data that

need to (e relia(le, secure, and centrali0ed.

%sually housed in a closet si0ed ca(inet


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!erver

$urpose is to 5serve.6

A computer that has the purpose of supplying its users with data

usually through the use of a 3A# 1local area networ"2.


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!ystem unit

Case that holds the power supply, storage devices, and

the circuit (oards 1including the mother(oard2.


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C$% 1Central $rocessing %nit2

)here the processing in a computer ta"es place, often called the

(rain of the computer.


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Input *evices

%nits that gather information and transform that

information it into a series of electronic signals for the

computer.


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7ey(oard

An arrangement of letters, num(ers, and special function "eys that

act as the primary input device to the computer.


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ouse

An input device that allows the user to manipulate o(ects on the

screen (y moving the device along the surface of a des".


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!ound Card

A circuit (oard that gives the computer the

a(ility to accept audio input, play sound

files, and produce audio output through

spea"ers or headphones


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odem

A device that sends and receives data to

and from computers over telephone lines.


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-utput *evices

*evices that display, print, or transmit the

results of processing from the computer's

memory.


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onitor

*isplay device that forms an image (y converting electrical signals

from the computer into points of colored light on the screen.

+esolution

The density of the grid used to display or print te&t and

graphics the greater the hori0ontal and vertical density, thehigher the resolution.

$i&els

The smallest unit in a graphic image computer display

devices use a matri& of pi&els to display te&t and graphics.


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!torage *evices

%sed to "eep data when the power to the computer is turned off.

*ifferent forms

Hard dis"

8loppy or 0ip dis"s

C*/)riter


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!pea"ers

-utput devices that receive signals from the computer's

sound card to play music, narration, or sound effects.


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THANK U

Types of Computers Sem2

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