Hardware MCQs Set 10 – Advanced Computer Hardware Multiple Choice Questions with Answers (2025)

This set covers essential hardware concepts including memory, storage, CPU architecture, ports, and peripheral devices. Each multiple-choice question includes four options with the correct answer highlighted in green for quick and effective learning.

1. Which device controls communication between the CPU and other components?
A. PSU
B. Chipset ✔
C. GPU
D. Fan

2. Which component is responsible for storing instructions before execution?
A. SSD
B. Cache Memory ✔
C. PSU
D. Speaker

3. Which hardware part runs the POST during startup?
A. RAM
B. CPU
C. BIOS / UEFI ✔
D. GPU

4. The maximum speed of SATA III is:
A. 1.5 Gbps
B. 3.0 Gbps
C. 6.0 Gbps ✔
D. 12.0 Gbps

5. Which connector is used to power SATA drives?
A. 4-pin EPS
B. PCIe Power
C. SATA Power Connector ✔
D. Molex 4-pin

6. Which device is used to project computer displays onto a screen?
A. TV
B. Projector ✔
C. Webcam
D. Scanner

7. Which memory type is non-volatile?
A. Cache
B. RAM
C. ROM ✔
D. Register

8. A “pixel” is a unit of:
A. Printing
B. Digital display resolution ✔
C. Sound
D. Storage

9. Which device interprets and carries out instructions from the computer’s hardware?
A. GPU
B. CPU ✔
C. PSU
D. Chipset

10. What does the term “overclocking” refer to?
A. Underpowering CPU
B. Increasing CPU/GPU speed beyond default ✔
C. Reducing GPU speed
D. Formatting RAM

11. Which device converts electrical signals into sound?
A. Microphone
B. Printer
C. Speaker ✔
D. Scanner

12. Which hardware part is used to store the boot loader?
A. RAM
B. ROM ✔
C. PSU
D. NIC

13. Which port is commonly used for external display connections?
A. PS/2
B. HDMI ✔
C. RJ-11
D. SATA

14. USB stands for:
A. Universal System Bus
B. Universal Serial Bus ✔
C. Unified System Board
D. Unplugged Serial Box

15. Which component reduces heat using liquid coolant?
A. Heat Sink
B. Liquid Cooling System ✔
C. Fan
D. VRAM

16. PCIe 4.0 offers a bandwidth of:
A. 2 GB/s
B. 16 GB/s ✔
C. 4 GB/s
D. 1 GB/s

17. Which device reads fingerprints for authentication?
A. Microphone
B. Biometric Scanner ✔
C. Trackball
D. Barcode Reader

18. A touchpad is primarily used in:
A. Desktop PCs
B. Laptops ✔
C. Servers
D. Printers

19. Which connector is used for telephone lines?
A. RJ-11 ✔
B. RJ-45
C. HDMI
D. VGA

20. Which device is used to test and measure electrical values?
A. PSU
B. Multimeter ✔
C. Hard Disk
D. NIC