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.

430
Total Questions

Practice Questions

Page 17 of 22
Question #321
What is the primary sensor in most flatbed scanners?
A. Thermal
B. CCD or CIS
C. CMOS only for phones
D. Magnetic
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Charge Coupled Device or Contact Image Sensor.
This question belongs to: Computer Computer Hardware
Question #322
Ergonomic design in hardware aims to:
A. Improve comfort and reduce health risks
B. Reduce functionality
C. Increase price
D. Limit customization
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
Long-term user health.
This question belongs to: Computer Computer Hardware
Question #323
Which connection type supports daisy chaining multiple monitors?
A. HDMI ARC only
B. VGA
C. DisplayPort
D. DVI-D
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
MST support.
This question belongs to: Computer Computer Hardware
Question #324
The spinning speed of HDD is measured in:
A. MB/s
B. DPI
C. RPM (Revolutions Per Minute)
D. GHz
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
5400 or 7200 RPM common.
This question belongs to: Computer Computer Hardware
Question #325
A all-in-one printer's ADF stands for:
A. Automatic Document Feeder
B. Audio Digital Filter
C. Automatic Duplex Function
D. Advanced Data Format
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
For automatic multi-page handling.
This question belongs to: Computer Computer Hardware
Question #326
What is 'threading' in CPU terms?
A. Memory threads
B. Display threads
C. Simultaneous multithreading for efficiency
D. Physical cores
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
Like hyper-threading.
This question belongs to: Computer Computer Hardware
Question #327
The best surface for optical mouse is:
A. Shiny
B. Matte non-reflective
C. Mirror
D. Glass
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Consistent tracking.
This question belongs to: Computer Computer Hardware
Question #328
What does firmware update for monitors typically fix?
A. Power supply
B. Compatibility, bugs, and features
C. Physical damage
D. Hardware failure
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Improves performance.
This question belongs to: Computer Computer Hardware
Question #329
Which is a contactless input technology?
A. Membrane keyboard
B. RFID and NFC
C. Mechanical switches
D. Trackball
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Proximity reading.
This question belongs to: Computer Computer Hardware
Question #330
The memory controller in modern CPUs is often:
A. Integrated in the processor
B. In RAM
C. External chip
D. On motherboard only
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
Reduces latency.
This question belongs to: Computer Computer Hardware
Question #331
What is the purpose of a printer's fuser unit?
A. Scan documents
B. Store ink
C. Feed paper
D. Bond toner to paper with heat and pressure
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
In laser printers.
This question belongs to: Computer Computer Hardware
Question #332
Wide color gamut monitors support:
A. Grayscale
B. Mono audio
C. DCI-P3 or Adobe RGB
D. sRGB only
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
For professional content creation.
This question belongs to: Computer Computer Hardware
Question #333
A common troubleshooting step for input devices is:
A. Replacing monitor
B. Checking connections and drivers
C. Reformatting HDD
D. Updating BIOS always
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Basic diagnostics.
This question belongs to: Computer Computer Hardware
Question #334
What is the role of capacitors on motherboards?
A. Processing
B. Data storage
C. Voltage stabilization and filtering
D. Display
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
Power delivery quality.
This question belongs to: Computer Computer Hardware
Question #335
Which scanner resolution is sufficient for text documents?
A. 50 DPI
B. 300 DPI
C. 1200 DPI only
D. 100 DPI
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Balance of quality and file size.
This question belongs to: Computer Computer Hardware
Question #336
The term 'die shrink' refers to:
A. Printer head
B. Reducing CPU manufacturing process size
C. Keyboard layout
D. Monitor size reduction
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Improves efficiency.
This question belongs to: Computer Computer Hardware
Question #337
What feature allows seamless transition between laptop and external monitor?
A. Hot plugging and display switching
B. Cable change only
C. Fixed setup only
D. Reboot required
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
Modern OS support.
This question belongs to: Computer Computer Hardware
Question #338
Thermal paste replacement is needed when:
A. Printer jams
B. CPU temperatures rise abnormally
C. Monitor flickers
D. Mouse stops
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Dries out over time.
This question belongs to: Computer Computer Hardware
Question #339
A vector monitor or plotter excels in:
A. Photographs
B. Line drawings and CAD
C. Audio
D. Text documents
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
Precision over raster.
This question belongs to: Computer Computer Hardware
Question #340
What is 'out of order execution' in modern CPUs?
A. Memory management
B. Graphics only
C. Sequential only
D. Reordering instructions for efficiency
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
Performance optimization.
This question belongs to: Computer Computer Hardware

More Computer Topics

Computer Abbreviations MCQs
Computer Fundamentals MCQs
Computer Networking MCQs
Computer Software MCQs
CPU (Central Processing Unit) MCQs
Cyber Security MCQs
Database Management System (DBMS) MCQs
Internet and Web Technologies MCQs
Memory and Storage Devices MCQs
Microsoft Office MCQs
Operating Systems MCQs
Programming Languages MCQs
Today's Top Topics
Cyber Security 269 Computer Abbreviations 369 Operating Systems 510 Computer Software 347 CPU (Central Processing Unit) 327
Explore Subjects
Accountancy and Statistics 3179 Science 4430 Computer 5279 History GK 3374 Current Affairs 575
Practice Mix
The receipt ______ they gave is fake.
Identify the error: 'He is the most young of the team.'
Which view in PowerPoint displays thumbnails of all slides for easy rearrangement?
A sum of money at compound interest doubles in 5 years. In how many years will it become 4 times?
Which of the following is an example of educational software?