A

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Q. Which of the following operating system use command line interface ?

  • (A) Mac OS X
  • (B) Windows 7
  • (C) Ms DOS
  • (D) LINUX
  • Correct Answer - Option(C)
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  • Filed under category Computer
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Explanation by: Admin

Correct answer: (C) MS-DOS and (D) LINUX
But if you can choose only one, then:

Best answer: (C) MS-DOS

Explanation:

(A) Mac OS X:
Primarily uses a Graphical User Interface (GUI), though it has a terminal with command-line capabilities (Unix-based).

(B) Windows 7:
Also primarily GUI-based, with optional access to Command Prompt.

(C) MS-DOS (Microsoft Disk Operating System):
A pure Command Line Interface (CLI) system — no GUI at all.

(D) LINUX:
Can run both CLI (via terminal/shell) and GUI (via desktop environments like GNOME, KDE). So, it supports CLI but is not CLI-only.

So:

  • If the question expects only CLI-only OS, then (C) MS-DOS is the best choice.
  • If multiple answers are allowed, then (C) and (D) are both correct.

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