31. ....... is a feature for scheduling and multi-programming to provide an economical interactive system of two or more users.

1. 1. Time sharing

   
   
   

   2. Multi-sharing

   
   
   

   3. Time tracing

   
   
   

   4. Multi-processing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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32. Which one of the following is an MS-DOS external command ?

1. 1. DIR

   
   
   

   2. COPY

   
   
   

   3. FORMAT

   
   
   

   4. PROMPT

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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33. Which of the following commercial software products are examples of operating system software and application software, respectively ?

1. 1. Microsoft Window XP and Microsoft Word

   
   
   

   2. Microsoft office XP and Microsoft Windows XP

   
   
   

   3. MS DOS and Microsoft Windows XP

   
   
   

   4. UNIX and LINUX

   
   
   

   5. UNIX and Java

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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34. An operating system is a/an

1. 1. accounting software

   
   
   

   2. application software

   
   
   

   3. system software

   
   
   

   4. utility software

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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35. In DOS, the DIR commands is used to

1. 1. display content of a file

   
   
   

   2. delete file

   
   
   

   3. display list of files and subdirectories

   
   
   

   4. copy files

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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