Computer Hardware MCQs with Answers and Explanations

Question #281

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What is adaptive sync technology?

A. Color adjustment

B. Matches monitor refresh to GPU frame rate

C. Brightness control

D. Fixed refresh

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Correct Answer: Option B

Explanation:
Eliminates screen tearing.

This question belongs to: Computer Computer Hardware

Question #282

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A graphic tablet with pressure sensitivity is useful for:

A. Basic pointing

B. Typing

C. Digital art and design

D. Scanning

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Correct Answer: Option C

Explanation:
Natural drawing experience.

This question belongs to: Computer Computer Hardware

Question #283

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What does the acronym 'SoC' stand for in hardware?

A. Storage on Chip

B. System on Chip

C. System Output Control

D. Screen on Computer

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Correct Answer: Option B

Explanation:
Integrated CPU, GPU etc. in one chip.

This question belongs to: Computer Computer Hardware

Question #284

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Which printer setting affects the quality vs speed trade-off?

A. Print quality mode (draft, normal, best)

B. Paper size

C. Color mode

D. Orientation

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Correct Answer: Option A

Explanation:
Higher quality slower.

This question belongs to: Computer Computer Hardware

Question #285

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The front side bus (FSB) has been largely replaced by:

A. USB

B. Direct CPU connections or QPI

C. HDMI

D. Slower buses

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Correct Answer: Option B

Explanation:
Modern architectures.

This question belongs to: Computer Computer Hardware

Question #286

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What is the benefit of anti-reflective coatings?

A. Increases glare

B. Reduces glare for better visibility

C. Lowers resolution

D. Changes colors

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Correct Answer: Option B

Explanation:
In bright environments.

This question belongs to: Computer Computer Hardware

Question #287

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RFID tags are read using:

A. Optical scanners

B. Thermal sensors

C. Radio frequency input devices

D. Magnetic readers

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Correct Answer: Option C

Explanation:
Contactless identification.

This question belongs to: Computer Computer Hardware

Question #288

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The endurance of flash memory is limited by:

A. Temperature only

B. Size only

C. Read cycles

D. Write/erase cycles

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Correct Answer: Option D

Explanation:
Wear leveling helps extend life.

This question belongs to: Computer Computer Hardware

Question #289

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What is a common connector for external monitors on laptops?

A. Serial

B. PS/2

C. Parallel

D. HDMI or USB-C with DisplayPort

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Correct Answer: Option D

Explanation:
Modern video output.

This question belongs to: Computer Computer Hardware

Question #290

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Mechanical keyboards are popular among:

A. Budget users only

B. Silent environments exclusively

C. Typists and gamers for feedback

D. Mobile users

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Correct Answer: Option C

Explanation:
Tactile and durable.

This question belongs to: Computer Computer Hardware

Question #291

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Which component manages interrupts in the system?

A. Graphics controller

B. Memory controller

C. ALU

D. Interrupt controller or APIC

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Correct Answer: Option D

Explanation:
Handles device requests.

This question belongs to: Computer Computer Hardware

Question #292

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The best monitor for color-critical work is typically:

A. Basic LED

B. OLED for office

C. IPS with wide gamut and calibration support

D. TN panel

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Correct Answer: Option C

Explanation:
Accurate reproduction.

This question belongs to: Computer Computer Hardware

Question #293

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What is the primary function of a scanner's light source?

A. Illuminate document for sensor capture

B. Store data

C. Print image

D. Cool the device

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Correct Answer: Option A

Explanation:
CCD or CIS sensors need light.

This question belongs to: Computer Computer Hardware

Question #294

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DDR5 RAM offers improvements in:

A. Lower capacity

B. Higher latency

C. Speed and efficiency over DDR4

D. Compatibility with old systems

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Correct Answer: Option C

Explanation:
Latest standard in 2026.

This question belongs to: Computer Computer Hardware

Question #295

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Cloud-ready printers support:

A. Scanning to cloud only

B. Direct printing from cloud services

C. Offline only

D. No network

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Correct Answer: Option B

Explanation:
Convenient remote access.

This question belongs to: Computer Computer Hardware

Question #296

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The integrated GPU is part of:

A. Storage

B. RAM

C. Motherboard chipset only

D. CPU in many processors

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Correct Answer: Option D

Explanation:
For basic graphics without discrete card.

This question belongs to: Computer Computer Hardware

Question #297

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What causes moire patterns in scanned images?

A. Low resolution

B. Wrong color mode

C. Interference with printed patterns

D. High ink

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Correct Answer: Option C

Explanation:
Descreening filters help.

This question belongs to: Computer Computer Hardware

Question #298

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A hardware firewall can be a:

A. Software only

B. Dedicated device or router feature

C. Printer option

D. Monitor setting

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Correct Answer: Option B

Explanation:
Network protection.

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Question #299

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Which pointing device uses a ball for movement detection?

A. Trackball

B. Optical mouse

C. Touchpad

D. Stylus

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Correct Answer: Option A

Explanation:
User moves the ball.

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Question #300

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What is the main advantage of liquid cooling over air cooling?

A. No maintenance

B. Easier installation

C. Lower cost

D. Better heat dissipation for high-end CPUs

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Correct Answer: Option D

Explanation:
For overclocking and quiet operation.

This question belongs to: Computer Computer Hardware

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