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2.  BIOS stands for Basic Input/Output System.                                        ....................

                    3.  CUI stands for Character User Interface.                                          ....................
                    4.  System software has three categories: OS, BIOS, and Utility Software.             ....................

                    5.  GUI is a more user-friendly interface.                                            ....................

                 D.  Match the following terms:
                        Column A                               Column B

                    1.  Graphical User Interface           a.  The command needs to be typed in this interface.
                    2.  Operating System                   b.   It  provides a  set of  commands, menus, and  icons
                                                               that allow a user to interact with a computer.

                    3.  Application Software               c.   It uses menus, icons, and  mouse clicks to  give
                                                               instructions.
                    4.  Character User Interface           d.  It is an interface between the user and the computer.

                    5.  User Interface                     e.  It is developed for a specific purpose.



                  Let's Do            It                                                    Section B (Subjective)



                 A.  Short answer type questions.
                    1.  Define an operating system.

                    2.  Name any two categories of software.
                    3.  Give two examples of character user interfaces.

                    4.  Write the names of two GUI operating systems.

                 B.  Long answer type questions.
                    1.  What is the difference between CUI and GUI?

                    2.  Explain any two functions of an operating system.

                    3.  Which type of operating system interface do you find more user-friendly, and why?
                        Provide reasons to support your answer.
                    4.  Explain the following types of operating systems:

                        a. Single-User                      b. Multi-User
                 C.  Application-based questions.

                    1.  You’re organising a school play, where you need someone to manage the
                        lights, another person to handle the sound, and a third to oversee the
                        stage. Which functions of an operating system perform similar tasks to
                        keep your computer running smoothly and efficiently?

                    2.  You have a computer running two programmes at the same time: one for playing
                        music and one for writing a story. Which type of operating system manages these
                        programmes so that they both work smoothly without interfering with each other?


                                                                                             Operating System      13
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