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Some of the output devices are as follows:

Monitor Printer Speakers

Let us understand the working of computer with the help of an example.
Suppose you want the computer to add two numbers, 7 and 6. The three steps are

as follows :

INPUT PROCESS OUTPUT

7, 6, + 6
7
13
+
Here, 7 and 6 are data and + is the Tech Et ique e

operation to be performed. The CPU ¨ Do not play near a computer. The
will process the data according to the screen of a monitor is delicate. It

instructions, i.e. add 7 and 6. Now, 13 may break when hit with a solid

is the final result or output of 7+6. object.

Try It Out #Information Literacy

Write ‘O’ for output devices and ‘I’ for input devices in the boxes.

1. Mouse 2. Printer 3. Speakers

4. Keyboard 5. Monitor 6. Scanner

Flashback Time

¨ A computer cannot work on its own, it needs instructions to work. There are
certain steps that a computer follows to perform a task.

¨ A computer also works in three basic steps- Input, Process and Output.

¨ The data and instructions entered into the computer together called input.
¨ The input devices are used to send information to the computer.

¨ The process of changing the entered data into meaningful information is
called processing.

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