Hardware MCQs Set 24 – Latest Computer Hardware Multiple Choice Questions and Answers (2025 Update)

Below is a fresh set of 20 unique MCQs related to core computer hardware concepts. Each question includes four options, and the correct answer is highlighted in green with a green check mark for easy learning.

1. Which connector is commonly used to connect modern monitors?
A. PS/2
B. HDMI ✔
C. RJ11
D. FireWire

2. Which device is responsible for maintaining system time?
A. PSU
B. CMOS Battery ✔
C. Heat Sink
D. GPU

3. Which component is known as the backbone of the computer?
A. CPU
B. Motherboard ✔
C. SSD
D. Printer

4. Which storage device has the fastest read/write speed?
A. HDD
B. DVD
C. SSD ✔
D. Floppy Disk

5. Which device converts digital signals to analog for display?
A. NIC
B. Graphics Card ✔
C. PSU
D. Scanner

6. Which port is oval-shaped and used for reversible connections?
A. VGA
B. Serial Port
C. USB Type-C ✔
D. PS/2

7. Which hardware component is essential for booting the system?
A. Speakers
B. BIOS ✔
C. Webcam
D. Microphone

8. Which card allows wireless communication?
A. Sound Card
B. Wi-Fi Card ✔
C. Graphics Card
D. Modem Card

9. Which device is used for biometric authentication?
A. Trackball
B. Fingerprint Scanner ✔
C. Joystick
D. Light Pen

10. Which memory is used to store frequently used instructions?
A. ROM
B. Cache Memory ✔
C. DVD
D. Tape Drive

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

12. What is another name for the processor speed?
A. Pixel Rate
B. Clock Speed ✔
C. Data Rate
D. Bit Speed

13. Which bus connects the CPU to the main memory?
A. USB Bus
B. System Bus ✔
C. PCI Bus
D. Expansion Bus

14. Which device is used to control the movement in gaming?
A. Keyboard
B. Joystick ✔
C. Webcam
D. Printer

15. Which hardware component stores data permanently?
A. RAM
B. Hard Disk ✔
C. Cache
D. ALU

16. Which interface is used for connecting internal drives?
A. PS/2
B. SATA ✔
C. HDMI
D. RJ45

17. Which device projects computer output onto a large screen?
A. Monitor
B. Projector ✔
C. Scanner
D. RAM

18. Which key component handles all mathematical operations?
A. CU
B. ALU ✔
C. PSU
D. BIOS

19. Which connector is typically used for high-speed data transfer?
A. PS/2
B. Serial Port
C. USB 3.0 ✔
D. RJ11

20. Which device is used to take hard copies of digital documents?
A. Monitor
B. Printer ✔
C. Speakers
D. Modem