A device driver is required for: MCQ with Answer and Explanation

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A device driver is required for:

A. Hardware to communicate with OS

B. Software installation

C. Only monitors

D. Only printers

Answer: Option A

Solution (By JKSSB Mock Tests)

Drivers translate OS commands to hardware.

This question belongs to: Computer Computer Hardware

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Question #1

What is the use of a document camera?

A. Printing

B. Audio recording

C. Real-time display of physical documents

D. Scanning to file only

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Correct Answer: Option C

Explanation:
Also called visualizer.

This question belongs to: Computer Computer Hardware

Question #2

What is the function of a voltage regulator module (VRM)?

A. Cool the system

B. Store data

C. Display graphics

D. Regulate power to CPU

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Correct Answer: Option D

Explanation:
VRMs ensure stable voltage for processors.

This question belongs to: Computer Computer Hardware

Question #3

The main reason for using ECC RAM in workstations is:

A. Gaming performance

B. Error correction for critical applications

C. Lower price

D. Aesthetics

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Correct Answer: Option B

Explanation:
Data accuracy.

This question belongs to: Computer Computer Hardware

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