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. Smoothing jagged edges in graphics
B. Color temperature
C. Reducing power
D. Increasing brightness
Discuss
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Correct Answer: Option A

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

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

Explanation:
NVMe uses PCIe for higher speeds.
This question belongs to: Computer Computer Hardware
Question #164
The bezel size in monitors affects:
A. Storage
B. Input methods
C. Processing power
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. Wireless only
C. Membrane 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. Speaker
B. Motherboard or RAID controller card
C. Keyboard
D. Monitor
Discuss
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Correct Answer: Option B

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. Passive is always better
B. Active uses more power always
C. Active has transistors per pixel for better quality
D. No difference
Discuss
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Correct Answer: Option C

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. Wireless keyboard
B. Color printer
C. Insufficient RAM
D. High resolution monitor
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. Text input
C. Parallel processing for graphics and AI
D. Printing
Discuss
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Correct Answer: Option C

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. HDD controller
B. RAM only
C. CPU only
D. Northbridge and Southbridge
Discuss
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Correct Answer: Option D

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

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. Printer
C. Microphone
D. Scanner
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. Mobile devices for low power
B. Servers
C. Desktops
D. Printers
Discuss
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Correct Answer: Option A

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. Backup data
B. Cool components
C. Increase speed
D. Protect hardware from voltage spikes
Discuss
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Correct Answer: Option D

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

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

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. Higher resolution only
C. RGB lighting
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. HDD and SSD technology
C. Monitor and CPU
D. RAM and ROM
Discuss
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Correct Answer: Option B

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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