Hardware MCQs Set 9 – Advanced Computer Hardware Multiple Choice Questions with Answers (2025)

This new MCQ set covers essential and advanced hardware concepts useful for IT exams, computer operator tests, and technical interviews. Each question includes four options with the correct answer clearly highlighted in green.

1. Which component generates the clock signal for the motherboard?
A. GPU
B. System Clock / Crystal Oscillator ✔
C. PSU
D. RAM

2. What does the term “dual-core” refer to?
A. Two GPUs
B. Two processing cores in one CPU ✔
C. Two motherboards
D. Two power supplies

3. Which storage type uses laser technology?
A. Hard Disk
B. Optical Disk ✔
C. SSD
D. Flash Drive

4. What is the purpose of thermal paste?
A. Store data
B. Improve heat transfer between CPU and heat sink ✔
C. Increase voltage
D. Clean the board

5. Which connector is used for old keyboards?
A. PS/2 ✔
B. USB-C
C. HDMI
D. RJ-11

6. Which device provides backup power for a short duration?
A. PSU
B. UPS ✔
C. Modem
D. Hub

7. Which feature allows a CPU to run multiple threads at once?
A. Overclocking
B. Hyper-Threading ✔
C. Caching
D. Dual BIOS

8. Which storage device has the lowest latency?
A. HDD
B. USB Flash Drive
C. NVMe SSD ✔
D. CD-ROM

9. Which port is used for connecting a projector?
A. RJ-45
B. Audio Jack
C. VGA / HDMI ✔
D. PS/2

10. Which unit determines CPU speed?
A. MBps
B. GHz ✔
C. RPM
D. Kbps

11. Which hardware component controls the flow of current inside CPU?
A. BIOS
B. Transistors ✔
C. Register
D. PSU

12. What is the main function of VRAM?
A. Store documents
B. Store graphical data ✔
C. Improve sound quality
D. Increase CPU speed

13. Which device detects light and converts it into a digital signal?
A. Printer
B. Image Sensor ✔
C. Speaker
D. Modem

14. Which component helps reduce electrical noise on the motherboard?
A. RAM
B. Capacitor ✔
C. VRAM
D. Chipset

15. UEFI is an advanced version of:
A. SSD
B. BIOS ✔
C. GPU
D. HDMI

16. Which bus connects high-speed components like GPU?
A. SATA
B. PCI Express ✔
C. USB
D. ISA

17. Which device allows analog-to-digital conversion?
A. Printer
B. ADC ✔
C. PSU
D. Modem

18. Which is the smallest unit inside a processor?
A. Cache
B. Transistor ✔
C. Bus
D. Register

19. Which hardware generates the startup POST beep?
A. PSU
B. System Speaker ✔
C. GPU
D. RAM

20. Which device reads magnetic stripe cards?
A. Scanner
B. Card Reader ✔
C. Microphone
D. Web Camera