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Doctors Medicines MCQs Q&A

  1. MS-DOS
  2. PC-DOS
  3. Unix
  4. All of the above
  5. None of the above
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1 Answers

Answer: Option 4

The operating system (OS) is the best known example of system software. The OS manages all the other programs in a computer. According to some definitions, system software also includes system utilities, such as the disk defragmenter and System Restore, and development tools such as compilers and debuggers.

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