CDS 2026 (I) General Knowledge, question 33

Topic: Science and technology

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Q33

Which one of the following statements is not correct with regard to the UNIX operating system ?

  1. (a) It is written in C.
  2. (b) It is portable to a variety of computers.
  3. (c) It is a multi-user operating system.
  4. (d) It cannot be time-shared by several users.Correct answer

Solution.

Answer: (d) It cannot be time-shared by several users.

  1. UNIX supports multiple users through time-sharing, so (d) is false.
  2. Its implementation largely in C helped portability across different hardware platforms.