Session 2 : What do you mean by System Unit, Display Device, Input Device and External Device?

The System Units 
A system unit is a personal computer component that

houses other devices necessary for the computer to function.



A Display Device 

A display device is a personal computer component that

enables users to view the text and graphical data associated with a computer program.

An Input Device

An input device is a personal computer component that

enables users to enter data or instructions into a computer.

There are several categories of external devices:

-Microphone

-Digital camera

-Scanner

-Speakers

-Printer

-Network device

-External drive 


Let's move to next session...