Computer Hardware MCQs

Computer

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 9 of 22
Question #161
Anti-aliasing in monitors relates to:
A. Reducing power
B. Smoothing jagged edges in graphics
C. Increasing brightness
D. Color temperature
Discuss
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Correct Answer: Option B

Explanation:
Improves visual quality.
This question belongs to: Computer Computer Hardware
Question #162
What is a common input device in factories for inventory?
A. RFID reader or barcode scanner
B. Mouse
C. Keyboard only
D. Touchscreen only
Discuss
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Correct Answer: Option A

Explanation:
Efficient for tracking.
This question belongs to: Computer Computer Hardware
Question #163
Which is faster: SATA SSD or NVMe SSD?
A. Depends on capacity
B. Both same
C. SATA SSD
D. NVMe SSD
Discuss
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Correct Answer: Option D

Explanation:
NVMe uses PCIe for higher speeds.
This question belongs to: Computer Computer Hardware
Question #164
The bezel size in monitors affects:
A. Processing power
B. Storage
C. Input methods
D. Multi-monitor setups
Discuss
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Correct Answer: Option D

Explanation:
Thin bezels are preferred for seamless arrays.
This question belongs to: Computer Computer Hardware
Question #165
What does the term 'mechanical keyboard' imply?
A. Touchscreen
B. Membrane only
C. Wireless only
D. Individual switches for each key
Discuss
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Correct Answer: Option D

Explanation:
Provide tactile feedback and durability.
This question belongs to: Computer Computer Hardware
Question #166
Which hardware supports RAID configurations?
A. Motherboard or RAID controller card
B. Keyboard
C. Monitor
D. Speaker
Discuss
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Correct Answer: Option A

Explanation:
For data redundancy and performance.
This question belongs to: Computer Computer Hardware
Question #167
What is the main difference between active and passive matrix displays?
A. No difference
B. Active has transistors per pixel for better quality
C. Passive is always better
D. Active uses more power always
Discuss
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Correct Answer: Option B

Explanation:
TFT active matrix is standard in modern LCDs.
This question belongs to: Computer Computer Hardware
Question #168
A common cause of slow computer performance is:
A. High resolution monitor
B. Wireless keyboard
C. Insufficient RAM
D. Color printer
Discuss
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Correct Answer: Option C

Explanation:
Upgrading RAM often helps.
This question belongs to: Computer Computer Hardware
Question #169
What is the function of a GPU?
A. Scanning
B. Parallel processing for graphics and AI
C. Text input
D. Printing
Discuss
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Correct Answer: Option B

Explanation:
Graphics Processing Unit excels in parallel tasks.
This question belongs to: Computer Computer Hardware
Question #170
Which scanner type is portable?
A. Handheld scanner
B. Flatbed only
C. Film scanner
D. Drum scanner
Discuss
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Correct Answer: Option A

Explanation:
Handheld for on-the-go scanning.
This question belongs to: Computer Computer Hardware
Question #171
The term 'chipset' includes:
A. CPU only
B. HDD controller
C. Northbridge and Southbridge
D. RAM only
Discuss
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Correct Answer: Option C

Explanation:
Controls communication on motherboard.
This question belongs to: Computer Computer Hardware
Question #172
What is VRR in modern monitors?
A. Virtual Reality Rendering
B. Voltage Regulation
C. Variable Refresh Rate to reduce tearing
D. Very High Resolution
Discuss
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Correct Answer: Option C

Explanation:
Like FreeSync or G-Sync.
This question belongs to: Computer Computer Hardware
Question #173
Which device is used for voice input?
A. Speaker
B. Scanner
C. Microphone
D. Printer
Discuss
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Correct Answer: Option C

Explanation:
Microphones convert sound to digital input.
This question belongs to: Computer Computer Hardware
Question #174
LPDDR memory is used in:
A. Printers
B. Desktops
C. Mobile devices for low power
D. Servers
Discuss
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Correct Answer: Option C

Explanation:
Low Power DDR for battery efficiency.
This question belongs to: Computer Computer Hardware
Question #175
What is the purpose of a surge protector?
A. Protect hardware from voltage spikes
B. Cool components
C. Backup data
D. Increase speed
Discuss
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Correct Answer: Option A

Explanation:
Essential for power protection.
This question belongs to: Computer Computer Hardware
Question #176
Which printing method is used in large format printers?
A. Laser only
B. Dot matrix only
C. Inkjet or solvent
D. Thermal only
Discuss
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Correct Answer: Option C

Explanation:
For banners and posters.
This question belongs to: Computer Computer Hardware
Question #177
The address bus width determines:
A. Storage type
B. Processing speed
C. Maximum addressable memory
D. Graphics quality
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Correct Answer: Option C

Explanation:
E.g., 32-bit vs 64-bit addressing.
This question belongs to: Computer Computer Hardware
Question #178
What is eye strain reduction feature in monitors?
A. Bigger size
B. RGB lighting
C. Higher resolution only
D. Flicker-free and blue light filter
Discuss
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Correct Answer: Option D

Explanation:
Important for long usage.
This question belongs to: Computer Computer Hardware
Question #179
A hybrid drive combines:
A. Keyboard and mouse
B. RAM and ROM
C. Monitor and CPU
D. HDD and SSD technology
Discuss
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Correct Answer: Option D

Explanation:
SSHD for balance of capacity and speed.
This question belongs to: Computer Computer Hardware
Question #180
Which input device is used in retail for price scanning?
A. Joystick
B. POS barcode scanner
C. Graphics tablet
D. Microphone
Discuss
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Correct Answer: Option B

Explanation:
Speeds up checkout process.
This question belongs to: Computer Computer Hardware

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