Computer Hardware MCQs
Practice Computer Hardware MCQs with answers and detailed explanations covering input devices, output devices, scanners, printers, keyboards, monitors and computer hardware components frequently asked in competitive examinations.
Question #71
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Which scanner is best for high-volume document scanning?
Correct Answer: Option A
Explanation:
Sheet-fed scanners are efficient for multiple pages.
Sheet-fed scanners are efficient for multiple pages.
This question belongs to:
Computer
Computer Hardware
Question #72
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The term 'overclocking' refers to:
Correct Answer: Option D
Explanation:
Overclocking boosts performance but risks heat issues.
Overclocking boosts performance but risks heat issues.
This question belongs to:
Computer
Computer Hardware
Question #73
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What type of output is produced by a plotter?
Correct Answer: Option D
Explanation:
Plotters are used for CAD and engineering drawings.
Plotters are used for CAD and engineering drawings.
This question belongs to:
Computer
Computer Hardware
Question #74
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Which component has the highest storage hierarchy in terms of speed?
Correct Answer: Option B
Explanation:
Cache is closest to CPU in memory hierarchy.
Cache is closest to CPU in memory hierarchy.
This question belongs to:
Computer
Computer Hardware
Question #75
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DVI port is primarily used for:
Correct Answer: Option A
Explanation:
DVI connects monitors for digital video.
DVI connects monitors for digital video.
This question belongs to:
Computer
Computer Hardware
Question #76
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Which input device uses reflected light for operation?
Correct Answer: Option B
Explanation:
Optical mouse detects movement via light reflection.
Optical mouse detects movement via light reflection.
This question belongs to:
Computer
Computer Hardware
Question #77
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What is the capacity unit for modern RAM modules?
Correct Answer: Option B
Explanation:
RAM is typically measured in gigabytes (e.g., 8GB, 16GB).
RAM is typically measured in gigabytes (e.g., 8GB, 16GB).
This question belongs to:
Computer
Computer Hardware
Question #78
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Multifunction printers can perform:
Correct Answer: Option B
Explanation:
All-in-one printers combine multiple functions.
All-in-one printers combine multiple functions.
This question belongs to:
Computer
Computer Hardware
Question #79
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The socket where CPU is installed is called:
Correct Answer: Option D
Explanation:
Motherboard has specific sockets for processors.
Motherboard has specific sockets for processors.
This question belongs to:
Computer
Computer Hardware
Question #80
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What does refresh rate indicate in monitors?
Correct Answer: Option A
Explanation:
Measured in Hz, higher reduces flicker (e.g., 144Hz).
Measured in Hz, higher reduces flicker (e.g., 144Hz).
This question belongs to:
Computer
Computer Hardware
