Computer MCQs
Computer MCQs are designed to assess your understanding of computer fundamentals, including topics like operating systems, MS Office, hardware, software, data communication, internet, programming basics, and networking. These MCQs are beneficial for IT exams, computer operator roles, NTS tests, and government service commission exams. With the growing digital landscape, having a strong command over computer knowledge is not optional—it’s a necessity. These MCQs are updated regularly to reflect the latest trends and technologies. Preparing through this section helps candidates improve accuracy, speed, and confidence in computer-related questions, giving them an edge in tech-oriented or general competitive tests.
Q: Central Processing Unit handles instructions in a computer
A) CPU
B) RAM
C) Hard Drive
D) Monitor
✅ Correct Answer: A
Explanation: The CPU is responsible for executing instructions.
Q: RAM provides temporary storage for data and programs
A) USB Drive
B) RAM
C) ROM
D) SSD
✅ Correct Answer: B
Explanation: RAM is used for temporary data storage and quick access.
Q: Binary code consists of
A) 2s and 3s
B) X and Y
C) A and B
D) 0s and 1s
✅ Correct Answer: D
Explanation: Computers use binary code made of 0s and 1s.
Q: A browser displays content written in
A) DOCX
B) HTML
C) EXE
D) PDF
✅ Correct Answer: B
Explanation: Web browsers are designed to render HTML documents.
Q: Linux is classified as a(n)
A) Proprietary OS
B) Open-source OS
C) Game
D) Mobile App
✅ Correct Answer: B
Explanation: Linux is an open-source operating system.
Q: Firewall prevents unauthorized access to
A) Network
B) Printer
C) Monitor
D) Scanner
✅ Correct Answer: A
Explanation: A firewall controls incoming and outgoing network traffic.
Q: A bit is the smallest unit of
A) Power
B) Processing
C) Network
D) Storage
✅ Correct Answer: D
Explanation: A bit represents a binary digit in computing.
Q: Cloud computing enables access to resources via
A) Internet
B) External hard drives
C) LAN cable only
D) Local disks
✅ Correct Answer: A
Explanation: Cloud services are accessed over the internet.
Q: Hard Disk Drive is a type of
A) Volatile memory
B) Permanent storage
C) Cache memory
D) Optical drive
✅ Correct Answer: B
Explanation: HDDs are used for long-term data storage.
Q: Compiler translates high-level code into
A) Text document
B) Machine code
C) Video stream
D) Image file
✅ Correct Answer: B
Explanation: Compilers convert programming code into machine-readable instructions.