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    KEYBOARD

                                                                  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.

                                             MOUSE

                                       A mouse is an input device that sends instructions to the computer

                                       with the click of a button. It is used to draw pictures and for selecting
                        Mouse
                                       objects on the computer. A computer mouse has two buttons and a
                                       scroll wheel in the middle.

                           PRINTER

                     A printer is an output device used to
                     print the result of the work done by

                     the computer on paper. There are two
                     types of printers:

                        Inkjet printer                                          Inkjet Printer           Laser Printer
                        Laser printer

                                                         SCANNER

                                                   A scanner is an input device that is used to send documents
                                                   or  images from  paper  to  the  computer.  It  works  like a
                                                   photocopier machine.

                          Scanner

                           MICROPHONE

                     A microphone is an input device that is used to record voice, music
                     and sounds. These can be stored on the computer. A headset is a

                     device that combines both a microphone and headphones.
                                                                                                         Microphone

                                                                                               Parts of a Computer       19

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