Which output device is commonly used in presentations? MCQ with Answer and Explanation

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Which output device is commonly used in presentations?

A. Projector

B. Printer

C. Keyboard

D. Scanner

Answer: Option A

Solution (By JKSSB Mock Tests)

Projectors display computer output on large screens.

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Which interface has replaced Parallel ATA?

A. USB 1.0

B. Serial ATA (SATA)

C. SCSI

D. IDE

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Correct Answer: Option B

Explanation:
Faster and more reliable.

This question belongs to: Computer Computer Hardware

Question #2

The cache hit ratio indicates:

A. Display quality

B. Memory failure

C. Efficiency of cache usage

D. Printer efficiency

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Correct Answer: Option C

Explanation:
Higher is better.

This question belongs to: Computer Computer Hardware

Question #3

A device driver is required for:

A. Only printers

B. Only monitors

C. Software installation

D. Hardware to communicate with OS

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Correct Answer: Option D

Explanation:
Drivers translate OS commands to hardware.

This question belongs to: Computer Computer Hardware

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