Question:
Which of the following is NOT an operating system?
Which of the following is NOT an operating system?
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Exam Tip:
Operating systems: Windows, Linux, UNIX, macOS, Android, iOS.
Application software: MS-Office, Adobe Photoshop, Chrome, etc.
Operating systems: Windows, Linux, UNIX, macOS, Android, iOS.
Application software: MS-Office, Adobe Photoshop, Chrome, etc.
Updated On: Aug 27, 2026
- MS-DOS
- MS-Office
- UNIX
- MS-Window
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
An operating system is system software that manages hardware and software resources.
Application software performs specific tasks for users.
Step 2: Analyzing the Options:
• (A) MS-DOS: An operating system (Microsoft Disk Operating System).
• (B) MS-Office: An application software (productivity suite).
• (C) UNIX: An operating system.
• (D) MS-Window: An operating system (Microsoft Windows).
Step 3: Final Answer:
Therefore, option (B) is correct.
An operating system is system software that manages hardware and software resources.
Application software performs specific tasks for users.
Step 2: Analyzing the Options:
• (A) MS-DOS: An operating system (Microsoft Disk Operating System).
• (B) MS-Office: An application software (productivity suite).
• (C) UNIX: An operating system.
• (D) MS-Window: An operating system (Microsoft Windows).
Step 3: Final Answer:
Therefore, option (B) is correct.
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