Multiple choice general knowledge

Which of Following is Not a GUI Based OS ?

  1. UNIX

  2. LINUX

  3. Microsoft Windows

  4. Mac OS
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A Correct answer
Explanation

Traditional UNIX is a command-line operating system without a graphical interface by default. Modern Linux distributions, Windows, and Mac OS all include GUIs. While UNIX can run GUI with add-ons like X Window System, the base OS is character-based, unlike the others which are GUI-first.

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