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. Proprietary designs
B. Color coding
C. Form factors and interfaces like ATX, SATA
D. Custom cables only
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Correct Answer: Option C

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

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. Controller board
B. Motor
C. Platter
D. Actuator arm assembly
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Correct Answer: Option D

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. Monitors use RGB
C. Projectors only RGB
D. CMYK color model in printers
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Correct Answer: Option D

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

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

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

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

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. Touchpad
C. Joystick
D. Trackball external
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. No relation
B. For monitors only
C. Larger size better
D. Smaller size leads to efficiency and performance
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Correct Answer: Option D

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

Explanation:
For realistic visuals.
This question belongs to: Computer Computer Hardware
Question #272
A common maintenance for optical mice is:
A. Paper loading
B. Ink refill
C. Cleaning the sensor
D. Replacing ball
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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. CPU control only
B. Devices to control the bus directly
C. Display control
D. Memory isolation
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Correct Answer: Option B

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. Thermal receipt
D. Dot matrix
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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. Clock multiplier for overclocking
B. Core count
C. Memory size
D. Cache size
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Correct Answer: Option A

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

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. Both depending on context
C. ROM for boot
D. RAM
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Correct Answer: Option B

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. Scan documents
C. Manage printing tasks over network
D. Input text
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Correct Answer: Option C

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. Scissor-switch or membrane
B. All are loud
C. Mechanical clicky
D. Optical only
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Correct Answer: Option A

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

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

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