What is the primary function of a scanner's light source? MCQ with Answer and Explanation

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What is the primary function of a scanner's light source?

A. Print image

B. Cool the device

C. Store data

D. Illuminate document for sensor capture

Answer: Option D

Solution (By JKSSB Mock Tests)

CCD or CIS sensors need light.

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Question #1

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What does the term 'form factor' refer to in hardware?

A. The memory capacity

B. The physical size and shape

C. The processing speed

D. The color scheme

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Correct Answer: Option B

Explanation:
Form factor defines the physical specifications like ATX for motherboards.

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Question #2

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A MICR reader is specialized for:

A. Banking cheques

B. Barcodes

C. General documents

D. Photos

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Correct Answer: Option A

Explanation:
Magnetic ink characters.

This question belongs to: Computer Computer Hardware

Question #3

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A network printer can be shared via:

A. Ethernet or Wi-Fi

B. USB only to one PC

C. Parallel

D. Serial cable

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Correct Answer: Option A

Explanation:
Office environments.

This question belongs to: Computer Computer Hardware

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