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    SDG Activity

                        Using too  much  of anything  isn't  good.  This is  also  true  for
                        machines. Some machines hurt the Earth when we use them
                        too much. Identify two such machines near you and discuss
                        how we can use them properly.

                                                                                                 21 st
                         LAB ACTIVITY                                                          Century   #Technology Literacy
                                                                                                Skills
                         ▶    Visit your computer lab, count the total number of desktop computers that

                             are installed there. Are there any laptops as well? Write the main difference
                             between a computer and a laptop.

                         ▶   With the help of your teacher, visit the school’s office and see how computers
                             are used to keep the records of the students.

                                                                                           Computer—A Smart Machine   17

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