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2 Computer Devices
Your Aim
to learn about:
Input Devices
Output Devices
Storage Devices
A computer is made up of many parts. These parts can be categorised into three
groups:
1. Input Devices → Keyboard, Mouse, Scanner, etc.
2. Output Devices → Monitor, Printer, Speakers, etc.
3. Storage Devices → Hard Disk, Compact Disc, Pen Drive, etc.
INPUT DEVICES
The devices that are used to give commands or instructions to the computer or tell
the computer what to do are called input devices. Some of the input devices are:
If you could go inside a computer and see how it processes information, Keyboard
what do you think you would see? What kind of tiny creatures or machines
might be working inside? When warm, moist air rises and cools,
it changes to tiny droplets of water or
ice crystals, which form clouds just like a
computer takes input, processes it and
shows output.
Keyboard
A keyboard is an input device that is used to give instructions to the computer by
typing text, numbers and symbols. It has buttons called keys.
Computer Devices 19

