July 30, 2018
Surendra Jagwan
Computer - Components
All types of computers
follow the same basic logical structure and perform the following five basic
operations for converting raw input data into information useful to their
users.
|
S.No.
|
Operation
|
Description
|
|
1
|
Take Input
|
The process of entering data and instructions into the
computer system.
|
|
2
|
Store Data
|
Saving data and instructions so that they are available
for processing as and when required.
|
|
3
|
Processing Data
|
Performing arithmetic, and logical operations on data in
order to convert them into useful information.
|
|
4
|
Output Information
|
The process of producing useful information or results for
the user, such as a printed report or visual display.
|
|
5
|
Control the workflow
|
Directs the manner and sequence in which all of the above operations
are performed.
|
Input
Unit
This unit contains
devices with the help of which we enter data into the computer. This unit
creates a link between the user and the computer. The input devices translate
the information into a form understandable by the computer.
CPU
(Central Processing Unit)
CPU is considered as the
brain of the computer. CPU performs all types of data processing operations. It
stores data, intermediate results, and instructions (program). It controls the
operation of all parts of the computer.
CPU itself has the
following three components −
·
ALU (Arithmetic Logic
Unit)
·
Memory Unit
·
Control Unit
Output
Unit
The output unit consists
of devices with the help of which we get the information from the computer.
This unit is a link between the computer and the users. Output devices
translate the computer's output into a form understandable by the users.
