Which technology is used in some keyboards for silent operation? MCQ with Answer and Explanation

Which technology is used in some keyboards for silent operation?

A. Optical only

B. Scissor-switch or membrane

C. All are loud

D. Mechanical clicky

Answer: Option B

Suitable for offices.

This question belongs to: Computer Computer Hardware

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Question #1 Report Error

OLED monitors are known for:

A. High power consumption

B. Excellent contrast and thin design

C. Being very expensive only for servers

D. Low resolution

Correct Answer: Option B

Explanation:
OLED provides better blacks and thinner panels.

This question belongs to: Computer Computer Hardware

Question #2 Report Error

Which component requires thermal paste for installation?

A. RAM

B. Monitor

C. Hard disk

D. CPU on heatsink

Correct Answer: Option D

Explanation:
Improves heat transfer.

This question belongs to: Computer Computer Hardware

Question #3 Report Error

The pipeline in CPU refers to:

A. Graphics pipeline

B. Memory pipeline

C. Power pipeline

D. Instruction processing stages

Correct Answer: Option D

Explanation:
Superscalar architecture.

This question belongs to: Computer Computer Hardware