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To Sum Up


                           Most of the machines that we use in our daily life also work according to
                         the commands given by us.
                           Computers work on the Input-Process-Output cycle, also known as the
                         IPO cycle.
                           Input is giving instructions to the computer in the form of numbers, letters
                         or symbols.

                           After receiving the input, the computer performs action on it with the
                         help of the Central Processing Unit (CPU).
                           Output is the result that we get after processing.

                           The computer is not just an ordinary machine. It has many advantages
                         which makes it so special.
                           Computers are useful in the teaching and learning process.

                           The computer is an amazing machine but it also has some disadvantages.
                           Computer is a man-made machine.




                                                             Exercise



                                                        Section A (Objective)

                  A. Tick ( ) the correct option.

                     1.  Which of the following is a brain of the computer?
                         a. Monitor                            b. Printer                    c. CPU

                     2.  Which of the following is not an output device?

                         a. Mouse                              b. Headphones                 c. Printer

                     3.  What is the result that we get after processing?

                         a. Input                              b. Process                    c. Output

                     4.  Which of the following is an output device?
                         a. Monitor                            b. Mouse                      c. CPU


                  B.  Fill in the blanks using the words given below.

                                          Hints: computer virus, man-made, IPO, input

                     1.  We give input to a computer through ................................ devices.

                     2.  A ................................ is a harmful program that doesn’t let a computer work properly.



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