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The result we get after processing is called output.

                         The devices that are used to store data are called storage devices.

                         A computer works on the IPO (Input-Process-Output) cycle.
                         A computer needs instructions to do anything. These step-wise instructions are
                         called software.

                         A software that controls and manages all the activities of a computer system is
                         called system software.

                         The software that are designed to perform some specific type of jobs on a
                         computer are called application software.

                         Microcomputers, minicomputers and supercomputers are the three different
                         types of computers.





                                                          Exercise


                                                       Section A (Objective)
                 A.  Tick ( ) the correct option.

                    1.  Which of the following is an input device?



                       a.                                                 b.




                       c.                                                 d.


                    2.  Which of the following is a processing device?




                       a.                                                 b.






                        c.                                                d.



                    3.  Which of the following is an output device?

                       a. Plotter                                         b. Scanner


                       c. Touchscreen                                     d. Mouse




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                                                                                            A Computer System
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