Multiple choice

Which of the following is not an operating system?

  1. LINUX

  2. UNIX

  3. PASCAL

  4. XENIX
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The question asks which option is NOT an operating system. LINUX, UNIX, and XENIX are all operating systems or OS variants. PASCAL is a programming language developed by Niklaus Wirth, not an operating system. Therefore, PASCAL is the correct answer because it's the only option that is not an OS.

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