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Chapter Profile
                  When we hear a question with our ear the
                  input is received by the brain and the brain                  Just as bees collect nectar
                                                                                to make honey, computers
                  processes it. It then orders the mouth to                   gather information to help us


                  speak the final answer. Therefore, our ears                    solve problems and learn
                  act as an  input  unit,  the  brain  acts  as a                        new things.

                  processing unit and the mouth acts as an

                  output unit.


                         IPO DEVICES



                  A computer is made up of many parts. These parts are also known as devices.
                  Input Devices

                  The devices that are used to enter data into a computer are known as input devices.

                  The most commonly used input devices are keyboard and mouse.
                                                                                                                                            Exercise


                                                                                                                                            A.  Tick ( ) the correct option.

                                                                                                                                                 1.  Which of the following is the brain of the computer?


                                                                                                                                                     a.                                           b.
                                               Keyboard                                     Mouse
                  Processing Device                                                                                                                  c.                                           d.

                  The device that works on the input is called processing

                  device. CPU is the main processing device. CPU stands                                                                          2.  Which of the following is an input device?
                  for Central Processing Unit. It works like the brain of
                  a computer. CPU is fixed inside the CPU box/cabinet.                                                                               a.                                           b.


                  Output Devices
                                                                                                                                                     c.                                           d.
                  The devices which  help  us to get the results are                    CPU
                  called output devices. The most commonly  used                                       CPU box/cabinet

                  output devices are monitor, speakers, headphones and printer.                                                                  3.  Which of the following is a processing device?


                                                                                                                                                     a.                                           b.





                                                                                                                                                     c.                                           d.

                             Monitor                    Speakers              Headphones                Printer




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