Multiple choice

Which of the following is not a Operating System?

  1. SuSE

  2. UNIX

  3. OSD

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

SuSE (Linux), UNIX, and DOS are all operating systems. 'OSD' is not an operating system - it's likely a distractor or confusion with OS/2. The real operating systems are UNIX, DOS, Linux, Windows, macOS, etc. OSD has no meaning as an OS product.

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