Multiple choice technology

Which of the following operating systems is produced by IBM?

  1. OS-2

  2. Windows

  3. DOS

  4. UNIX
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IBM developed OS/2 (not OS-2, but that's the intended answer) in partnership with Microsoft. Windows and DOS were Microsoft products, and UNIX originated at AT&T Bell Labs. The question likely has a minor typo in the option text.

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