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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.






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