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D.  Write ‘T’ for true and ‘F’ for false.

                     1.  A computer system consists of hardware and software.                              ....................

                     2.  OS stands for Open System.                                                        ....................

                     3.  CUI stands for Character User Interface.                                          ....................

                     4.  System software includes the OS, BIOS, and utility software.                      ....................

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




                  Let's Do            It                                                    Section B (Subjective)




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

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                     2.  Name any two categories of software.

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                     3.  Give two examples of character user interfaces.

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                     4.  Write the names of any two GUI operating systems.

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

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                     2.  Explain any two functions of an operating system.
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                     3.  Which interface of operating system do you prefer as user and why? Give reasons to
                        support your answer.

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                     4.  Explain the following types of operating systems:
                         a.  Single user                    b.  Multi-user

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                                                                                             Operating System    13
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