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.

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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. Printer installation
D. Mouse pads
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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. Text input
B. Single click only
C. Gestures like pinch to zoom
D. Audio control
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. Monitor
D. Hard disk
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. Typing questions
B. Scanning answers
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. Competitive gaming
B. Photo viewing
C. Text editing only
D. Low power needs
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Correct Answer: Option A

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

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. Increase speed
B. Wireless charging
C. Ergonomics to prevent strain
D. RGB effect
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Correct Answer: Option C

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

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. Larger cache
C. More cores only
D. Virtualization support (VT-x or AMD-V)
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Correct Answer: Option D

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

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

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. 6 months
D. 1 year maximum
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. Higher resolutions and refresh rates
B. Printer connection
C. Lower cost cables
D. Audio only
Discuss
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Correct Answer: Option A

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

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. Fixed speed only
C. Adjustable DPI and programmable buttons
D. Wired only
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Correct Answer: Option C

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

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

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

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