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 #11
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What is the primary function of a computer mouse?
Correct Answer: Option B
Explanation:
Mouse is a pointing input device used for navigation and selection.
Mouse is a pointing input device used for navigation and selection.
This question belongs to:
Computer
Computer Hardware
Question #12
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Which type of monitor uses liquid crystals for display?
Correct Answer: Option C
Explanation:
LCD (Liquid Crystal Display) monitors use liquid crystals.
LCD (Liquid Crystal Display) monitors use liquid crystals.
This question belongs to:
Computer
Computer Hardware
Question #13
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What is the role of the motherboard in a computer system?
Correct Answer: Option C
Explanation:
Motherboard acts as the main circuit board connecting all components.
Motherboard acts as the main circuit board connecting all components.
This question belongs to:
Computer
Computer Hardware
Question #14
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Which input device is used for capturing images and converting them to digital form?
Correct Answer: Option A
Explanation:
Scanner digitizes physical images and documents.
Scanner digitizes physical images and documents.
This question belongs to:
Computer
Computer Hardware
Question #15
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SSD stands for:
Correct Answer: Option D
Explanation:
SSD is a faster, non-mechanical storage device using flash memory.
SSD is a faster, non-mechanical storage device using flash memory.
This question belongs to:
Computer
Computer Hardware
Question #16
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In competitive exams, which device is often asked as an example of both input and output?
Correct Answer: Option D
Explanation:
Touchscreen can function as both input (touch) and output (display) device.
Touchscreen can function as both input (touch) and output (display) device.
This question belongs to:
Computer
Computer Hardware
Question #17
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What is the full form of USB?
Correct Answer: Option C
Explanation:
USB is a standard for connecting peripherals to computers.
USB is a standard for connecting peripherals to computers.
This question belongs to:
Computer
Computer Hardware
Question #18
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Which printer technology uses electrostatic charges to print?
Correct Answer: Option A
Explanation:
Laser printers use laser and electrostatic principles.
Laser printers use laser and electrostatic principles.
This question belongs to:
Computer
Computer Hardware
Question #19
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Cache memory is used to:
Correct Answer: Option C
Explanation:
Cache memory improves performance by storing frequently accessed data.
Cache memory improves performance by storing frequently accessed data.
This question belongs to:
Computer
Computer Hardware
Question #20
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Which of the following is an optical input device?
Correct Answer: Option C
Explanation:
Barcode reader uses optical technology to scan barcodes.
Barcode reader uses optical technology to scan barcodes.
This question belongs to:
Computer
Computer Hardware
