Multiple choice

Which is not an operating system?

  1. Windows

  2. Windows 3.1

  3. Windows NT

  4. Windows 2000
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Windows 3.1 was not a standalone operating system - it was a graphical operating environment that ran on top of MS-DOS. You had to boot DOS first, then run Windows 3.1. Windows NT, Windows 2000, and Windows (the brand in general) are true standalone operating systems that boot independently.

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