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02                            COMPUTER—A



                                                                       WONDERFUL MACHINE














                           Your Aim

                           to learn about:


                                  Natural and Man-Made Things                What are Machines?
                                    Computer—A Wonderful Machine



                     NATURAL AND MAN-MADE THINGS

                 We see many things around us. Some are natural and some are man-made. For
                 example,











                    Tree            Sun           Cat                       Pencil      Television         Fan

                              Natural things                                         Man-made things

                     WHAT ARE MACHINES?

                 Machines are things made by man. They make our work easy. They also save our
                 time. Some machines need electricity to work and some do not. We use many
                 machines in our daily life. Some examples of machines are given below:








                                            A refrigerator keeps our food fresh. It also keeps water cool.








                      Refrigerator

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