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    2                          Parts of a Computer

                           Goal Glimpse

                               Monitor                                         CPU
                               Keyboard                                        Mouse

                               Printer                                         Scanner
                               Microphone                                      Speakers and Headphones
                               CD, DVD and Pen Drive

                      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.

                                                        MONITOR

                                                  A monitor is an output device that looks like a television
                                                  screen.  It is also known  as  Visual Display Unit (VDU).
                                                  The front portion of the monitor is called the screen. The

                                                  monitor shows you the data that you input and its result
                             Monitor              after the computer processes it.

                            CPU

                      The CPU (Central Processing Unit) is the processing
                      device that works on input and sends the result to the

                      output devices. The CPU is a chip which is placed inside
                      the CPU box/cabinet.                                                       CPU

                      CPU is  also called the “brain”  of a computer as it is                    116245 3836 975588
                      responsible for  all the work  done.  A CPU is further                   CPU      CPU Box/Cabinet
                      divided into three parts: ALU, CU and MU.

                     18     Premium Edition-II

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