Computer Science MCQs: From Basics to Advanced – Key Concepts Explained

In today’s digital era, Computer Science MCQs have become a core part of government job exams like FPSC, PPSC, NTS, CSS, and FIA. Whether you’re applying for an IT post or a general position, computer literacy is now a must.

 

This guide covers the most important Computer Science MCQs (2025 Edition) – from basics to advanced concepts – along with preparation tips to help you score high in your upcoming exam.

Basic Computer Knowledge MCQs

Q1. Which device is the brain of a computer?
Ans: CPU

Q2. Which part of the computer displays output?
Ans: Monitor

Q3. Which unit is used to measure computer memory?
Ans: Byte

Q4. Which storage device is non-volatile?
Ans: Hard Disk

Q5. The first generation of computers used?
Ans: Vacuum Tubes

Software & Operating Systems

Q6. Windows, Linux, and macOS are types of?
Ans: Operating Systems

Q7. MS Word, Excel, and PowerPoint are examples of?
Ans: Application Software

Q8. The function of the operating system is to?
Ans: Manage hardware and software resources

Q9. The kernel is a part of?
Ans: Operating System

Q10. Shortcut for “Paste” command in MS Word?
Ans: Ctrl + V

Computer Networking MCQs

Q11. LAN stands for?
Ans: Local Area Network

Q12. IP stands for?
Ans: Internet Protocol

Q13. Default port for HTTP is?
Ans: 80

Q14. Device used to connect two networks?
Ans: Router

Q15. Full form of Wi-Fi?
Ans: Wireless Fidelity

Programming & Database Concepts

Q16. C language was developed by?
Ans: Dennis Ritchie

Q17. HTML stands for?
Ans: HyperText Markup Language

Q18. SQL is used for?
Ans: Database management

Q19. A variable in programming stores?
Ans: Data values

Q20. The loop that runs indefinitely is called?
Ans: Infinite Loop

Study Tips for Computer Science MCQs

  • Revise basic IT concepts daily (hardware, software, networks)
  • Practice MS Office shortcuts & uses — often repeated in FPSC/PPSC exams
  • Focus on computer abbreviations (HTTP, IP, USB, ROM, BIOS)
  • Attempt Computer Science MCQs on AZMCQs.com daily
  • Watch short YouTube tutorials for visual understanding

Final Words

Computer Science is a high-scoring and predictable section in government exams. With regular practice and conceptual clarity, you can easily master it.

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