Which input device uses Hall effect sensors? MCQ with Answer and Explanation

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Which input device uses Hall effect sensors?

A. Optical mice

B. Monitors

C. Some mechanical keyboards for durability

D. Scanners

Answer: Option C

Solution (By JKSSB Mock Tests)

Contactless switching.

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Question #1

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Which hardware failure often causes 'blue screen' errors?

A. Printer jam

B. Faulty RAM

C. Monitor cable

D. Damaged keyboard

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Correct Answer: Option B

Explanation:
Bad RAM is a common cause of system crashes.

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Question #2

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The main reason for using error correction in storage is:

A. Data integrity

B. Reduce cost

C. Increase capacity

D. Faster speed

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Correct Answer: Option A

Explanation:
Prevents data corruption.

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Question #3

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SSD stands for:

A. Solid State Drive

B. Secure Storage Device

C. Secondary Storage Drive

D. System Storage Disk

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Correct Answer: Option A

Explanation:
SSD is a faster, non-mechanical storage device using flash memory.

This question belongs to: Computer Computer Hardware

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