Page 29 - Computer Class 02

To do any work on the computer, you have to follow these three
simple steps.

Input Process Output

This is known as the IPO cycle.

(I=Input, P=Process, O=Output)

Taking commands from the user to the computer is called input . It

is performed with the help of input devices.

Keyboard Mouse Microphone

All the above mentioned devices are input devices.

Working on the input is called processing .

CPU processes all the input data in it to give out the

results. So, it is called processing device.

Giving out the result is called output .

Output devices allow us to receive information from

the computer. CPU

Monitor Speakers Printer

All the above mentioned devices are output devices.

Computer-2 29