Hardware MCQs Set 18 – Advanced Computer Hardware Multiple Choice Questions with Answers (2025)

This new set of computer hardware MCQs helps you test and improve your technical knowledge. All correct answers are highlighted in green with a green check mark for clarity and easy revision.

1. Which component is responsible for executing program instructions?
A. GPU
B. PSU
C. CPU ✔
D. RAM

2. Which port is mainly used for wired internet connectivity?
A. HDMI
B. VGA
C. RJ-45 ✔
D. PS/2

3. What is the speed unit of processor clock cycles?
A. Mbps
B. GHz ✔
C. RPM
D. Kbps

4. Which device is used to cool the CPU?
A. Power Cord
B. Heat Sink ✔
C. Mouse
D. Ethernet Card

5. Which of the following is a volatile memory?
A. ROM
B. SSD
C. RAM ✔
D. Blu-ray Disc

6. What does BIOS stand for?
A. Basic Input Online System
B. Binary Input Output Setup
C. Basic Input Output System ✔
D. Base Internal Operating System

7. Which component helps store data permanently?
A. RAM
B. HDD ✔
C. L1 Cache
D. PSU

8. What type of connector is used for modern monitors?
A. PS/2
B. HDMI ✔
C. RJ-11
D. IDE

9. Which expansion slot is used for dedicated graphics cards?
A. SATA
B. PCI Express ✔
C. USB
D. Parallel Port

10. Which storage device has no moving parts?
A. HDD
B. DVD
C. SSD ✔
D. Tape Drive

11. Which type of printer uses impact technology?
A. Laser Printer
B. Inkjet Printer
C. Dot Matrix Printer ✔
D. Thermal Printer

12. Which device is used as the brain of the computer?
A. RAM
B. CPU ✔
C. GPU
D. Hard Disk

13. Which device helps supply power to all internal components?
A. Heat Sink
B. SMPS ✔
C. Motherboard
D. CMOS Battery

14. Which cable is used for high-speed data transfer between storage devices?
A. VGA
B. SATA Cable ✔
C. PS/2
D. HDMI

15. CMOS battery is used to store:
A. Application Data
B. Hard Disk Data
C. BIOS Settings ✔
D. Temporary Files

16. Which memory is the fastest?
A. RAM
B. ROM
C. USB Memory
D. Cache Memory ✔

17. What is the main function of a network interface card?
A. Increase RAM
B. Connect computer to a network ✔
C. Store data
D. Cool processor

18. Which connector is used for audio output?
A. HDMI
B. 3.5mm Audio Jack ✔
C. PS/2
D. VGA

19. Which device allows multiple computers to share resources in a network?
A. Modem
B. Switch ✔
C. Keyboard
D. UPS

20. Which bus connects the CPU and RAM with high bandwidth?
A. USB Bus
B. Front Side Bus (FSB) ✔
C. PCI Bus
D. Serial Bus