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Take Off                                                      Century   #Technology Literacy
                                                                                            21 st
                                                                                           Skills
                   Look at the pictures carefully. Write the name of the missing part in each picture.
























              In the previous class, you have learnt about parts of a computer. These parts are also
              known as computer devices. Let us learn about them in this chapter.


                    INPUT DEVICES


              The devices that are used to give commands or instructions to the computer and tell
              the computer what to do are called input devices. Let us study about some of them.


              Keyboard

              Keyboard is an input device that is used
              to give instructions to the computer by

              typing text and numbers. We type letters,
              numbers and symbols using a keyboard.


                          Mouse

                          Mouse is an input device that sends instructions to the computer with the click

                          of a button. It is used to draw pictures and select objects on the computer.




                                 Scanner


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








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