Computer Fundamental 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.
1.
Take Input
The
process of entering data and nstruction 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
processing of producing useful information or result for the user, such as a
printed report or visual display.
5.
Control the workflow
Direct
the manner and sequence in which of the above operations are performed.
Fig: Computer Fundamental Componets
1. 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.
2.
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
3. 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.
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