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Input and output Devices





                                                                                   Chapter
                                                                                   03





                                          Your Aim

                                          to learn about:
                                             Input Devices

                                             Output Devices
                                             Storage Devices



                 A computer  is made up of many parts.  These parts  are  categorised  into three

                 groups:
                   1.  Input Devices         Æ  Keyboard, Mouse, Scanner, etc.

                   2.  Output Devices  Æ  Monitor, Printer, Speakers, etc.

                   3.  Storage Devices  Æ  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:

                 Keyboard



















                                                              Keyboard
                 A keyboard is an input device that is used to give instructions to the computer by
                 typing text and numbers. It has buttons called keys. A standard keyboard has 104 keys.




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