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The three steps in the above example are called IPO (Input-Process-Output).

A computer also works in a stepwise manner.
We provide data and instructions to the computer; this is called Input.

The computer carries out the instructions on the provided data; this is called

Process.
The result we get after the process is complete is called Output.

Let’s understand the IPO with an example.

To add two numbers, the steps we follow are:
Step 1 Input : We enter two numbers as data and the ‘+’ operator as

instruction. For example, ‘3+2’

Step 2 Process : The computer adds the given numbers and calculates the
sum ‘5’.

Step 3 Output : The sum ‘5’ is displayed on the monitor.

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Step 1 Step 2 Step 3

Try This Logical Thinking

Look at the picture below and identify the IPO. Write I for Input, P for Process,

and O for Output.

____________ ____________ ____________

The IPO is performed with the help of different computer parts. These are

divided in the following categories:

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