Computer Hardware MCQs with Answers and Explanations

Question #241

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The VESA mount standard is for:

A. Keyboard trays

B. Mouse pads

C. Printer installation

D. Attaching monitors to stands or walls

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Correct Answer: Option D

Explanation:
Universal compatibility.

This question belongs to: Computer Computer Hardware

Question #242

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What does 'multi-touch' enable on input devices?

A. Text input

B. Audio control

C. Gestures like pinch to zoom

D. Single click only

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Correct Answer: Option C

Explanation:
Common in touchscreens.

This question belongs to: Computer Computer Hardware

Question #243

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Which component requires thermal paste for installation?

A. Monitor

B. CPU on heatsink

C. RAM

D. Hard disk

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Correct Answer: Option B

Explanation:
Improves heat transfer.

This question belongs to: Computer Computer Hardware

Question #244

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OLED technology in monitors provides:

A. Cheapest price

B. Lowest power in all cases

C. Slowest response

D. Perfect blacks and high contrast

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Correct Answer: Option D

Explanation:
Self-emissive pixels.

This question belongs to: Computer Computer Hardware

Question #245

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A common use of webcams in competitive exam context is:

A. Scanning answers

B. Typing questions

C. Printing admit cards

D. Online proctoring

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Correct Answer: Option D

Explanation:
For remote examinations.

This question belongs to: Computer Computer Hardware

Question #246

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What is the function of a bridge in networking hardware but also analogous in motherboards?

A. Stores files

B. Displays output

C. Processes data

D. Connects different buses or segments

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Correct Answer: Option D

Explanation:
Facilitates communication.

This question belongs to: Computer Computer Hardware

Question #247

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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

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Which storage interface is backward compatible with SATA?

A. All are

B. PCIe only

C. Some NVMe but primarily eSATA

D. None

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Correct Answer: Option C

Explanation:
External SATA for compatibility.

This question belongs to: Computer Computer Hardware

Question #249

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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

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What is 'firmware update' for printers?

A. Changes ink color

B. Increases paper capacity

C. Adds new hardware

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

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Which CPU feature allows running multiple OS simultaneously?

A. Virtualization support (VT-x or AMD-V)

B. Higher clock speed only

C. More cores only

D. Larger cache

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Correct Answer: Option A

Explanation:
Hardware virtualization.

This question belongs to: Computer Computer Hardware

Question #252

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What is the advantage of IPS over VA in color work?

A. Faster response

B. Lower price

C. Better color consistency and viewing angles

D. Higher contrast

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Correct Answer: Option C

Explanation:
Preferred by designers.

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Question #253

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A barcode scanner uses:

A. Laser or camera to read codes

B. Ink detection

C. Thermal sensors

D. Magnetic fields

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Correct Answer: Option A

Explanation:
Optical recognition.

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Question #254

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What is the typical lifespan rating for modern SSDs?

A. 6 months

B. Indefinite

C. 1 year maximum

D. Several years with high TBW

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Correct Answer: Option D

Explanation:
Depends on usage.

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Question #255

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The DisplayPort is preferred over HDMI in some cases for:

A. Printer connection

B. Lower cost cables

C. Audio only

D. Higher resolutions and refresh rates

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Correct Answer: Option D

Explanation:
Professional and gaming monitors.

This question belongs to: Computer Computer Hardware

Question #256

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Which device helps in reducing noise from printers?

A. All of above

B. Laser instead of dot matrix

C. Higher DPI setting

D. Enclosures or soundproof covers

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Correct Answer: Option A

Explanation:
Laser is inherently quieter.

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Question #257

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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.

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Question #258

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A common feature in modern mice is:

A. Fixed speed only

B. Adjustable DPI and programmable buttons

C. No scroll wheel

D. Wired only

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Correct Answer: Option B

Explanation:
Customization for users.

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Question #259

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The purpose of ECC in RAM is to:

A. Increase speed

B. Improve graphics

C. Detect and correct memory errors

D. Reduce cost

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Correct Answer: Option C

Explanation:
Critical for servers.

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Question #260

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What is the main use of a MIDI keyboard?

A. Standard typing

B. Gaming

C. Music production input

D. Data entry

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Correct Answer: Option C

Explanation:
For digital music creation.

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