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Introduction
of Computer
Computer:
It is a machine which gets i/p from the user & o/p
can be displayed in the monitor.
Full form for Computer:
C – Computer
O - Operating
M -Machine
P - Particularly
U - Used for
T - Trade
E - Education &
R – Research
Computer Types:-
Micro Computer
Mini Computer
Main frame Computer
Super Computer
Parts of Computer :-
Mother board
Processor
Co-Processor
Memory
I/P Devices
O/P Devices
Back Up devices
Cabinet
FRC Cable
Mother board:-
The Mother board is a circuit board which as all IC &
Peripheral devices. The Main IC in the Motherboard is
called Microprocessor. The Motherboard has two types
PC-XT
PC-AT
PC-XT:-
PC-XT is old type motherboard which has microprocessor
is 8088.The co-processor is 8087. In thus Motherboard
all memory are housed in IC. In this setup is done by
switch configuration.
PC-AT:-
The PC-AT is new tpe motherboard which has Main (or) Micro
Processor 80286 to Pentium-IV.Inbuilt co-processor is
used. Memory is used in the form of slots. The setup is
done by C-MOS configuration.
Processor:-
The main IC & heart of the computer is called Processor.
It is used to done arithmetic and logical operation.
Co-Processor:-
It is a supporting Ic for micro processor.it uniform to
perform mathematically operation particularly by floating
point operation.
Memory:-
It is used to store the data in the system or computer.
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