Types of Computers Sem2
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Transcript of 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