Computer Studies Made Simple : Introduction to Computer and its components

Definition of A Computer:

A computer is a machine that is programmed to receive data and process it into a meaningful information and store that information for use whenever required.

Components Of a computer:

Two main components of a computer are :

Hardware

Hardware is the physical part of the computer.

Software

Software refers to the programmes installed in the computer or the non-physical part of the computer that

processes the input to output.

Hardware components of a computer:

These include:

Input devices:

These devices input data into a computer and send data into the CPU / processing Unit.

Examples include : Keyboard and mouse

Processing Devices or the CPU

The central processing Unit processes the data

Main memory :

This stores the data before it is processed by the CPU and also stores the processed dadta as well.

Output Devices:

These devices display the results of processed data.

Example include Printer and monitor.

Storage Devices

These devices are used to store data.

Some examples include : Floppy disks,hard disc drives and CD ROM etc.