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21 st
                                                    Student              Corner           Century   #Technology Literacy
                                                                                            Skills
                         Visit different places and identify the different types of machines like
                         music system, a watch, a television, a mobile phone, a refrigerator and
                         a computer. Determine which devices require electricity to operate and
                         which do not.






                                                                                           21 st
                                                                                        Century   #Leadership & Responsibility
                                                                                          Skills
                            !           Do not touch the wires and cables


                         COMP           when the computer is on.
                       CAUTION



                    Recap



                         Machines are human-made things.
                         We see many things around us. Some are natural and some are human-made.
                         Computer is a machine that can do many kinds of work.

                         Machines make our work easy.
                         Machines also save our time.

                         Computers  are  used  in  schools,  offices,  hospitals,  shops,  railway  stations,
                        airports, and many other places.




                                                         Exercise



                  A.  Tick ( ) the correct option.

                      1.  Which of the following is a machine?
                          a.                           b.                              c.














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