Which input device is essential for accessibility? MCQ with Answer and Explanation

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Which input device is essential for accessibility?

A. Laser printers

B. Special keyboards, mice, or voice recognition

C. Standard only

D. High-end monitors

Answer: Option B

Solution (By JKSSB Mock Tests)

For users with disabilities.

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Question #1

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What is the role of the motherboard in a computer system?

A. To provide power supply

B. To connect and communicate between various hardware components

C. To store data long-term

D. To process instructions

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Correct Answer: Option B

Explanation:
Motherboard acts as the main circuit board connecting all components.

This question belongs to: Computer Computer Hardware

Question #2

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Flicker-free technology in monitors reduces:

A. Brightness

B. Contrast

C. Resolution

D. Eye strain by eliminating PWM flicker

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Correct Answer: Option D

Explanation:
Better for health.

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Question #3

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What is 'power gating' in processors?

A. Memory management

B. Increasing voltage

C. Display control

D. Shutting off unused parts to save power

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Correct Answer: Option D

Explanation:
Energy efficiency.

This question belongs to: Computer Computer Hardware

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