Hardware MCQs Set 23 – Advanced Computer Hardware Multiple Choice Questions with Answers (2025)

This new set includes 20 unique hardware-related MCQs designed for competitive exams and IT assessments. Correct answers are highlighted in green with a green check mark.

1. Which component supplies power to all parts of a computer?
A. Motherboard
B. Processor
C. Power Supply Unit (PSU) ✔
D. Heat Sink

2. Which device is used to cool the CPU?
A. Speaker
B. Heat Sink & Fan ✔
C. PSU
D. BIOS Chip

3. Which connector is used for high-definition video output?
A. VGA
B. HDMI ✔
C. PS/2
D. RJ45

4. Which memory type is mounted directly on the motherboard?
A. SSD
B. RAM ✔
C. USB
D. HDD

5. Which component processes all instructions in a computer?
A. GPU
B. CPU ✔
C. ROM
D. PSU

6. Which interface is most commonly used for connecting external storage?
A. SATA
B. USB ✔
C. PS/2
D. COM Port

7. Which unit converts AC to DC?
A. Motherboard
B. PSU ✔
C. Printer
D. Scanner

8. Which device is used to read CDs?
A. Hard Disk
B. Optical Drive ✔
C. USB Drive
D. SD Card

9. What is the full form of GPU?
A. General Processing Unit
B. Graphics Processing Unit ✔
C. Global Processor Utility
D. Graphic Performance Unit

10. Which component stores the BIOS settings?
A. CPU
B. CMOS Battery ✔
C. PSU
D. Hard Disk

11. Which connector is used for wired networking?
A. HDMI
B. RJ45 ✔
C. VGA
D. PS/2

12. Which hardware is responsible for computer sound output?
A. NIC
B. Sound Card ✔
C. Modem
D. PSU

13. Which unit holds expansion cards?
A. RAM
B. Motherboard ✔
C. SSD
D. Heat Sink

14. Which device stores data magnetically?
A. USB Drive
B. Hard Disk Drive (HDD) ✔
C. SSD
D. DVD

15. Which port is commonly used for old computer monitors?
A. HDMI
B. VGA ✔
C. USB-C
D. DVI-D

16. Which component temporarily holds data for processing?
A. ROM
B. RAM ✔
C. SSD
D. PSU

17. Which device detects the movement of a user’s hand?
A. Webcam
B. Mouse ✔
C. Speaker
D. Microphone

18. A modern SSD uses which technology?
A. Magnetic Storage
B. Flash Memory ✔
C. Optical Storage
D. Vacuum Tubes

19. Which part provides slots for RAM installation?
A. Hard Drive
B. Motherboard ✔
C. PSU
D. Heat Sink

20. Which device helps convert digital signals to audio signals?
A. NIC
B. Sound Card ✔
C. VGA Card
D. Modem