Computer Hardware MCQs

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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.

430
Total Questions

Practice Questions

Page 13 of 22
Question #241
The VESA mount standard is for:
A. Keyboard trays
B. Attaching monitors to stands or walls
C. Mouse pads
D. Printer installation
Discuss
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Correct Answer: Option B

Explanation:
Universal compatibility.
This question belongs to: Computer Computer Hardware
Question #242
What does 'multi-touch' enable on input devices?
A. Audio control
B. Single click only
C. Gestures like pinch to zoom
D. Text input
Discuss
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Correct Answer: Option C

Explanation:
Common in touchscreens.
This question belongs to: Computer Computer Hardware
Question #243
Which component requires thermal paste for installation?
A. RAM
B. CPU on heatsink
C. Hard disk
D. Monitor
Discuss
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Correct Answer: Option B

Explanation:
Improves heat transfer.
This question belongs to: Computer Computer Hardware
Question #244
OLED technology in monitors provides:
A. Slowest response
B. Cheapest price
C. Lowest power in all cases
D. Perfect blacks and high contrast
Discuss
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Correct Answer: Option D

Explanation:
Self-emissive pixels.
This question belongs to: Computer Computer Hardware
Question #245
A common use of webcams in competitive exam context is:
A. Scanning answers
B. Typing questions
C. Online proctoring
D. Printing admit cards
Discuss
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Correct Answer: Option C

Explanation:
For remote examinations.
This question belongs to: Computer Computer Hardware
Question #246
What is the function of a bridge in networking hardware but also analogous in motherboards?
A. Displays output
B. Processes data
C. Connects different buses or segments
D. Stores files
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Correct Answer: Option C

Explanation:
Facilitates communication.
This question belongs to: Computer Computer Hardware
Question #247
High refresh rate monitors (above 144Hz) are ideal for:
A. Photo viewing
B. Low power needs
C. Competitive gaming
D. Text editing only
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Correct Answer: Option C

Explanation:
Smoother gameplay.
This question belongs to: Computer Computer Hardware
Question #248
Which storage interface is backward compatible with SATA?
A. Some NVMe but primarily eSATA
B. None
C. All are
D. PCIe only
Discuss
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Correct Answer: Option A

Explanation:
External SATA for compatibility.
This question belongs to: Computer Computer Hardware
Question #249
The main purpose of a wrist rest on keyboards is:
A. Wireless charging
B. Ergonomics to prevent strain
C. Increase speed
D. RGB effect
Discuss
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Correct Answer: Option B

Explanation:
Comfort during long typing.
This question belongs to: Computer Computer Hardware
Question #250
What is 'firmware update' for printers?
A. Adds new hardware
B. Changes ink color
C. Increases paper capacity
D. Improves performance and fixes bugs
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Correct Answer: Option D

Explanation:
Manufacturer provided enhancements.
This question belongs to: Computer Computer Hardware
Question #251
Which CPU feature allows running multiple OS simultaneously?
A. Higher clock speed only
B. Virtualization support (VT-x or AMD-V)
C. More cores only
D. Larger cache
Discuss
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Correct Answer: Option B

Explanation:
Hardware virtualization.
This question belongs to: Computer Computer Hardware
Question #252
What is the advantage of IPS over VA in color work?
A. Faster response
B. Better color consistency and viewing angles
C. Higher contrast
D. Lower price
Discuss
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Correct Answer: Option B

Explanation:
Preferred by designers.
This question belongs to: Computer Computer Hardware
Question #253
A barcode scanner uses:
A. Thermal sensors
B. Laser or camera to read codes
C. Ink detection
D. Magnetic fields
Discuss
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Correct Answer: Option B

Explanation:
Optical recognition.
This question belongs to: Computer Computer Hardware
Question #254
What is the typical lifespan rating for modern SSDs?
A. Indefinite
B. Several years with high TBW
C. 1 year maximum
D. 6 months
Discuss
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Correct Answer: Option B

Explanation:
Depends on usage.
This question belongs to: Computer Computer Hardware
Question #255
The DisplayPort is preferred over HDMI in some cases for:
A. Printer connection
B. Audio only
C. Higher resolutions and refresh rates
D. Lower cost cables
Discuss
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Correct Answer: Option C

Explanation:
Professional and gaming monitors.
This question belongs to: Computer Computer Hardware
Question #256
Which device helps in reducing noise from printers?
A. All of above
B. Enclosures or soundproof covers
C. Laser instead of dot matrix
D. Higher DPI setting
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Correct Answer: Option A

Explanation:
Laser is inherently quieter.
This question belongs to: Computer Computer Hardware
Question #257
What does 'hyper transport' or 'infinity fabric' refer to?
A. Intel technology
B. Storage protocol
C. Monitor cable
D. AMD's high-speed CPU interconnect
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Correct Answer: Option D

Explanation:
Internal CPU communication.
This question belongs to: Computer Computer Hardware
Question #258
A common feature in modern mice is:
A. No scroll wheel
B. Adjustable DPI and programmable buttons
C. Fixed speed only
D. Wired only
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Correct Answer: Option B

Explanation:
Customization for users.
This question belongs to: Computer Computer Hardware
Question #259
The purpose of ECC in RAM is to:
A. Improve graphics
B. Detect and correct memory errors
C. Increase speed
D. Reduce cost
Discuss
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Correct Answer: Option B

Explanation:
Critical for servers.
This question belongs to: Computer Computer Hardware
Question #260
What is the main use of a MIDI keyboard?
A. Gaming
B. Music production input
C. Standard typing
D. Data entry
Discuss
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Correct Answer: Option B

Explanation:
For digital music creation.
This question belongs to: Computer Computer Hardware

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