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We know that a computer is a human-made machine. Have you wondered
how a computer works? In this chapter, we are going to learn how a computer

works.

IPO Cycle
1.

Have you seen your mother making mango shake for you? This is what she does Pizza base and toppings Baking Hot pizza
to make the mango shake. (Input) (Process) (Output)

1. She puts the mango pieces, sugar and milk in the blender. (This is the input.)

2. The blender mixes all the things. (This is the process.)

3. She pours the mango shake in the glass. Mango shake is ready to drink. (This
is the output.)

2.

Debit Card ATM Machine Cash
(Input) (Processing) (Output)
INPUT PROCESS OUTPUT
IPO Devices
Similarly, we give instructions to the computer; the computer then works on
Just as bees collect nectar to
the instructions and gives us the result. A computer is made up of many parts. make honey, computers gather
These parts are also known as devices. information to help us solve
Input Devices problems and learn new things.

The letters, numbers, symbols we give to the computer are called data. The devices that are used to enter data
into the computer and give orders are

called input devices. Some of the commonly used input devices are keyboard
The instructions that we give to the computer are called input. The working of
and mouse.
the computer is called processing and the result we get is called output.

Thus, a computer works in three steps:

INPUT → PROCESS → OUTPUT

This is also called IPO cycle. Let us look at some more examples of IPO cycle.

Keyboard Mouse

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