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.
