Computer Hardware MCQs

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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 14 of 22
Question #261
Which hardware standard ensures compatibility across manufacturers?
A. Custom cables only
B. Form factors and interfaces like ATX, SATA
C. Proprietary designs
D. Color coding
Discuss
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Correct Answer: Option B

Explanation:
Industry standards.
This question belongs to: Computer Computer Hardware
Question #262
What causes color shift in monitors when viewed from side?
A. Low refresh rate
B. Poor viewing angles in TN panels
C. High resolution
D. Backlight type
Discuss
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Correct Answer: Option B

Explanation:
IPS/VA better for angles.
This question belongs to: Computer Computer Hardware
Question #263
The read/write head in HDD is part of:
A. Motor
B. Actuator arm assembly
C. Controller board
D. Platter
Discuss
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Correct Answer: Option B

Explanation:
Moves across platters.
This question belongs to: Computer Computer Hardware
Question #264
Which output device uses cyan, magenta, yellow, black inks?
A. Speakers
B. CMYK color model in printers
C. Monitors use RGB
D. Projectors only RGB
Discuss
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Correct Answer: Option B

Explanation:
Subtractive color model.
This question belongs to: Computer Computer Hardware
Question #265
What is a key benefit of unified memory architecture?
A. Shared memory between CPU and GPU
B. Slower performance
C. Higher cost
D. Separate always
Discuss
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Correct Answer: Option A

Explanation:
Used in some integrated systems.
This question belongs to: Computer Computer Hardware
Question #266
A document scanner with OCR capability helps in:
A. Gaming input
B. Making searchable PDFs from paper
C. Printing faster
D. Audio transcription
Discuss
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Correct Answer: Option B

Explanation:
Digital archiving.
This question belongs to: Computer Computer Hardware
Question #267
The cache memory that is on the CPU die is:
A. External cache
B. L1 and L2
C. L3 only
D. Virtual memory
Discuss
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Correct Answer: Option B

Explanation:
Fastest levels.
This question belongs to: Computer Computer Hardware
Question #268
What feature do many modern printers have for security?
A. Open access only
B. Fingerprint only
C. Secure print with PIN
D. No security
Discuss
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Correct Answer: Option C

Explanation:
Prevents unauthorized printing.
This question belongs to: Computer Computer Hardware
Question #269
Which input device can replace a mouse in laptops?
A. All
B. Joystick
C. Trackball external
D. Touchpad
Discuss
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Correct Answer: Option A

Explanation:
Multiple options available.
This question belongs to: Computer Computer Hardware
Question #270
What is the significance of 'nanometer' process in CPU?
A. Larger size better
B. Smaller size leads to efficiency and performance
C. No relation
D. For monitors only
Discuss
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Correct Answer: Option B

Explanation:
Like 5nm, 7nm technology nodes.
This question belongs to: Computer Computer Hardware
Question #271
HDR support in monitors requires:
A. Monochrome
B. Higher brightness and color gamut
C. Low resolution
D. Slower refresh
Discuss
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Correct Answer: Option B

Explanation:
For realistic visuals.
This question belongs to: Computer Computer Hardware
Question #272
A common maintenance for optical mice is:
A. Ink refill
B. Paper loading
C. Cleaning the sensor
D. Replacing ball
Discuss
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Correct Answer: Option C

Explanation:
Dust affects performance.
This question belongs to: Computer Computer Hardware
Question #273
The term 'bus mastering' allows:
A. Display control
B. Memory isolation
C. Devices to control the bus directly
D. CPU control only
Discuss
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Correct Answer: Option C

Explanation:
Improves efficiency.
This question belongs to: Computer Computer Hardware
Question #274
Which type of printer is best for archival quality photos?
A. Laser
B. Professional inkjet with pigment inks
C. Dot matrix
D. Thermal receipt
Discuss
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Correct Answer: Option B

Explanation:
Long-lasting prints.
This question belongs to: Computer Computer Hardware
Question #275
What does the ' multiplier ' in CPU refer to?
A. Memory size
B. Core count
C. Clock multiplier for overclocking
D. Cache size
Discuss
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Correct Answer: Option C

Explanation:
Affects final clock speed.
This question belongs to: Computer Computer Hardware
Question #276
Curved vs flat monitors: curved are better for:
A. Low cost
B. Immersive wide field of view
C. Text alignment
D. Portability
Discuss
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Correct Answer: Option B

Explanation:
Especially in ultrawide.
This question belongs to: Computer Computer Hardware
Question #277
The primary memory that holds data during power on is:
A. HDD
B. RAM
C. Both depending on context
D. ROM for boot
Discuss
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Correct Answer: Option C

Explanation:
RAM for runtime, ROM for instructions.
This question belongs to: Computer Computer Hardware
Question #278
What is the function of a print server?
A. Display output
B. Manage printing tasks over network
C. Scan documents
D. Input text
Discuss
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Correct Answer: Option B

Explanation:
Shared printing in offices.
This question belongs to: Computer Computer Hardware
Question #279
Which technology is used in some keyboards for silent operation?
A. Mechanical clicky
B. Optical only
C. Scissor-switch or membrane
D. All are loud
Discuss
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Correct Answer: Option C

Explanation:
Suitable for offices.
This question belongs to: Computer Computer Hardware
Question #280
The main cause of HDD failure is often:
A. Software error
B. Mechanical wear of moving parts
C. High temperature only
D. Low usage
Discuss
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Correct Answer: Option B

Explanation:
SSDs avoid this.
This question belongs to: Computer Computer Hardware

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