What is the purpose of an operating system? MCQ with Answer and Explanation

What is the purpose of an operating system?
A. To execute applications only
B. To manage hardware and software resources
C. To store data permanently
D. To connect to the internet
Answer: Option B
Solution (By JKSSB Mock Tests)
An operating system manages computer hardware, software resources, and provides common services for programs.

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Practice More Computer Fundamentals Questions

Question #1
A type of specialized computer chip embedded directly inside an automobile braking system to monitor wheel slippage and engage anti-lock braking automatically is an:
A. Supercomputer Module
B. Embedded Computer
C. Mainframe Node
D. Analog Interface

Correct Answer: Option B


Explanation:
Embedded computers are dedicated microcontrollers buried within vehicles or machinery to run specialized real-time control software.

This question belongs to: Computer Computer Fundamentals
Question #2
What is the hexadecimal equivalent of binary 111000?
A. 39
B. 38
C. 3B
D. 3A

Correct Answer: Option B


Explanation:
111000 = 0011 1000 = 38 hex.

This question belongs to: Computer Computer Fundamentals
Question #3
Which characteristic states that a computer cannot act independently or generate new concepts without receiving a structured instruction set from a human?
A. No IQ
B. Storage Capacity
C. Versatility
D. Diligence

Correct Answer: Option A


Explanation:
Computers have no innate intelligence (No IQ) and can only follow pre-programmed logical paths provided by human instructions.

This question belongs to: Computer Computer Fundamentals