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 7 of 22
Question #121
A common resolution for HD monitors is:
A. 4096x2160
B. 1366x768
C. 2560x1440
D. 800x600
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Correct Answer: Option B

Explanation:
1366x768 is common for HD laptops.
This question belongs to: Computer Computer Hardware
Question #122
Which input device is used by architects for CAD?
A. Standard mouse
B. Barcode reader
C. Graphics tablet
D. Webcam
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Correct Answer: Option C

Explanation:
Graphics tablets offer precision for design.
This question belongs to: Computer Computer Hardware
Question #123
DDR4 is a type of:
A. Processor
B. Hard disk
C. Monitor
D. RAM
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Correct Answer: Option D

Explanation:
DDR4 is a generation of Synchronous Dynamic RAM.
This question belongs to: Computer Computer Hardware
Question #124
What causes banding in inkjet prints?
A. Clogged nozzles or low ink
B. High speed
C. Low resolution
D. Wrong paper
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Correct Answer: Option A

Explanation:
Maintenance like cleaning helps prevent it.
This question belongs to: Computer Computer Hardware
Question #125
The main circuit board in laptops is called:
A. Daughterboard
B. System board
C. Motherboard
D. All are same
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Correct Answer: Option D

Explanation:
Laptop motherboards are also called system boards.
This question belongs to: Computer Computer Hardware
Question #126
PCMCIA slots are used in:
A. Printers
B. Monitors
C. Desktops only
D. Older laptops for expansion cards
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Correct Answer: Option D

Explanation:
For adding functionality like modems.
This question belongs to: Computer Computer Hardware
Question #127
What is the benefit of 120Hz or higher refresh rate?
A. Smoother motion in videos and games
B. Higher resolution
C. Better color
D. Lower power use
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Correct Answer: Option A

Explanation:
Reduces motion blur.
This question belongs to: Computer Computer Hardware
Question #128
Which device converts mechanical movement into digital signals?
A. Mouse or joystick
B. Monitor
C. Printer
D. Scanner
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Correct Answer: Option A

Explanation:
Pointing devices translate movement.
This question belongs to: Computer Computer Hardware
Question #129
NVMe is a protocol for:
A. SSD communication over PCIe
B. Network storage
C. Graphics output
D. RAM management
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Correct Answer: Option A

Explanation:
NVMe enables faster SSD performance.
This question belongs to: Computer Computer Hardware
Question #130
What is a common cause of printer paper jam?
A. High resolution setting
B. Wrong paper type or rollers issue
C. Low ink
D. Driver error
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Correct Answer: Option B

Explanation:
Regular maintenance prevents jams.
This question belongs to: Computer Computer Hardware
Question #131
The control unit in CPU directs:
A. Flow of data and instructions
B. Arithmetic operations
C. Memory storage
D. Display output
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Correct Answer: Option A

Explanation:
CU coordinates the operations of the processor.
This question belongs to: Computer Computer Hardware
Question #132
IPS panels in monitors are known for:
A. Highest brightness
B. Lowest price
C. Fastest response for gaming only
D. Best viewing angles and color accuracy
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Correct Answer: Option D

Explanation:
IPS is preferred for professional work.
This question belongs to: Computer Computer Hardware
Question #133
Which is an example of tertiary storage?
A. SSD
B. Cache
C. RAM
D. Cloud storage or tape libraries
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Correct Answer: Option D

Explanation:
Tertiary is offline or nearline archival storage.
This question belongs to: Computer Computer Hardware
Question #134
Ergonomic keyboards are designed to:
A. Reduce cost
B. Increase typing speed only
C. Reduce strain on wrists and hands
D. For gaming exclusively
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Correct Answer: Option C

Explanation:
They promote natural hand position.
This question belongs to: Computer Computer Hardware
Question #135
What does the term 'form factor' apply to besides motherboards?
A. Power supplies and cases
B. Monitors only
C. Keyboards only
D. Printers
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Correct Answer: Option A

Explanation:
Standard sizes ensure compatibility.
This question belongs to: Computer Computer Hardware
Question #136
A device driver is required for:
A. Hardware to communicate with OS
B. Only monitors
C. Only printers
D. Software installation
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Correct Answer: Option A

Explanation:
Drivers translate OS commands to hardware.
This question belongs to: Computer Computer Hardware
Question #137
Which printing technology is fastest for text documents?
A. Dot matrix
B. Laser
C. Thermal
D. Inkjet
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Correct Answer: Option B

Explanation:
Laser printers are fast for office use.
This question belongs to: Computer Computer Hardware
Question #138
What is the function of a voltage regulator module (VRM)?
A. Store data
B. Cool the system
C. Regulate power to CPU
D. Display graphics
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Correct Answer: Option C

Explanation:
VRMs ensure stable voltage for processors.
This question belongs to: Computer Computer Hardware
Question #139
capacitive touchscreens do not work well with:
A. Clean surfaces
B. High resolution
C. Fingers
D. Gloves or styluses without conductivity
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Correct Answer: Option D

Explanation:
They rely on finger conductivity.
This question belongs to: Computer Computer Hardware
Question #140
Which component stores the boot loader?
A. Cache
B. Hard drive or SSD (MBR/GPT)
C. RAM
D. ROM only
Discuss
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Correct Answer: Option B

Explanation:
Boot sector on storage device.
This question belongs to: Computer Computer Hardware

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