Hardware MCQs Set 6 – Latest Computer Hardware Multiple Choice Questions and Answers (2025 Update)

This Hardware MCQ Set 6 includes a new collection of high-quality computer hardware multiple-choice questions designed for exams, interviews, and IT skills assessment. Each question features four options with correctly highlighted answers for quick revision and effective learning.

1. Which CPU component performs arithmetic and logic operations?
A. CU
B. Register
C. ALU ✔
D. Cache

2. Which device is used to store backup data for long-term?
A. SSD
B. External Hard Drive ✔
C. RAM
D. CPU

3. What does the term DPI refer to?
A. Display Pixel Input
B. Digital Performance Index
C. Dots Per Inch ✔
D. Device Position Interface

4. Which port is mainly used for video output?
A. USB
B. PS/2
C. HDMI ✔
D. RJ-45

5. Which hardware manages the instructions sent to the CPU?
A. RAM
B. SSD
C. Control Unit ✔
D. Graphics Card

6. Which device helps prevent data loss during sudden power cuts?
A. RAM
B. UPS ✔
C. CPU
D. Joystick

7. Which memory type is used to improve CPU processing time?
A. HDD
B. Cache Memory ✔
C. ROM
D. SSD

8. Which connector is used to attach internal Hard Disks and SSDs?
A. HDMI
B. PS/2
C. SATA ✔
D. FireWire

9. Which device converts sound into digital signals?
A. Speaker
B. Headphone
C. Microphone ✔
D. Amplifier

10. Which hardware component is responsible for rendering graphics?
A. SSD
B. Sound Card
C. GPU ✔
D. NIC

11. The capacity of RAM is measured in:
A. GHz
B. RPM
C. GB ✔
D. DB

12. Which device enables video conferencing?
A. Printer
B. Webcam ✔
C. Scanner
D. Plotter

13. Which term is used for the startup process of a computer?
A. Upload
B. Shutdown
C. Booting ✔
D. Scanning

14. What type of storage is a CD-ROM?
A. Magnetic
B. Optical ✔
C. Solid State
D. Mechanical

15. Which port is used to connect a telephone line?
A. USB
B. RJ-11 ✔
C. RJ-45
D. PS/2

16. Which component distributes power to all motherboard parts?
A. CPU
B. Power Supply Unit ✔
C. Fan
D. Heatsink

17. Which display technology provides better color and contrast?
A. CRT
B. LCD
C. LED ✔
D. Plasma

18. Which bus connects the CPU to RAM?
A. USB Bus
B. PCI Bus
C. System Bus ✔
D. Serial Bus

19. What does CMOS stand for?
A. Computer Memory Operating System
B. Central Machine Operating Source
C. Complementary Metal Oxide Semiconductor ✔
D. Control Machine Output System

20. Which device is used to secure network access?
A. Printer
B. Speaker
C. Firewall Device ✔
D. UPS