Multiple choice

Which of the following is not a famous operating system?

  1. Windows Vista

  2. Mac OS X

  3. Linux

  4. Sun OS

  5. Virtual Box
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

VirtualBox is a virtualization software or hypervisor used to run multiple operating systems, but it is not an OS itself. Windows, Mac OS X, Linux, and Sun OS are all actual operating systems.

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