What does 'multi-touch' enable on input devices? MCQ with Answer and Explanation

What does 'multi-touch' enable on input devices?

A. Gestures like pinch to zoom

B. Text input

C. Single click only

D. Audio control

Answer: Option A

Common in touchscreens.

This question belongs to: Computer Computer Hardware

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Question #1 Report Error

LPDDR memory is used in:

A. Desktops

B. Mobile devices for low power

C. Servers

D. Printers

Correct Answer: Option B

Explanation:
Low Power DDR for battery efficiency.

This question belongs to: Computer Computer Hardware

Question #2 Report Error

The cache coherence problem is managed by:

A. Multi-core CPU protocols

B. RAM

C. Single core only

D. HDD

Correct Answer: Option A

Explanation:
Ensures data consistency.

This question belongs to: Computer Computer Hardware

Question #3 Report Error

Which technology is used in some keyboards for silent operation?

A. All are loud

B. Mechanical clicky

C. Scissor-switch or membrane

D. Optical only

Correct Answer: Option C

Explanation:
Suitable for offices.

This question belongs to: Computer Computer Hardware