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Computer MCQs for Competitive Exams, Computer Science MCQS, PPSC Computer Operator Past Papers MCQS 2026, PPSC Past Papers & Solved MCQs, PPSC Past Papers 2026 Solved | By

Which of the following is NOT an operating system?

A. Oracle
B. Windows
C. Linux
D. MacOS
Correct Answer: A. Oracle

Correct answer: Oracle. Oracle is database software, not an operating system.

  • Windows: Windows is an operating system.
  • Linux: Linux is an operating system.
  • MacOS: MacOS is an operating system.

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گھر سے گھر تک کس کا افسانہ ہے؟

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Which of the following is also known as brain of computer?
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