Page 14 - iPlus_Ver_2.0_class_3
P. 14

#Coding & Computational Thinking
                        Let’s CatCh Up


                    Suppose you have to talk to your friend and dial her number. Write Input, Process
                    and Output under the pictures given below as steps to talk to her.



















                        Dialing number of your          Connecting to network           Talking to your friend
                                 friend

                          ………………………………                   ………………………………                     ………………………………


                   i +  COMPUTER SOFTWARE

                  A computer is an electronic machine. It cannot work by itself. A computer needs instructions
                  to do anything. These step-wise instructions are called software.
                  Software works like a manager between computer hardware and humans. So, we can say
                  that the part of a computer that we cannot see and touch is known as software.

                  For example, you play a movie on the computer from a pen drive. You can touch the pen
                  drive but you cannot touch the movie. The movie is a software and the pen drive is the
                  hardware which stores the movie and keeps it safe.

                  There are two types of software: System software and Application software.


                                                              Software




                                   System Software                              Application Software
                  System Software


                  A software that controls and manages all the activities of a computer system is called
                  System software. The system software is like a manager who manages a computer system.

                  When we switch on a computer, the first thing that system software does is to prepare
                  the computer for you to work on it. It loads important files so that you can work and run
                  the application software. This software is called the Operating System.



                    12
                         iPlus (Ver. 2.0)-III
   9   10   11   12   13   14   15   16   17   18   19