Computer Introduction MCQ – 50 Questions with Answers

If you’re preparing for competitive exams or just want to strengthen your computer basics, this Computer MCQ Quiz in Hindi is designed for you.

It includes 50 carefully selected questions that not only test your knowledge but also help you understand key concepts more clearly. Each question comes with the correct answer and a brief explanation for better learning.

👉 Scroll down and start the quiz to check your preparation level.

📝 Before You Start the Quiz:

Read each question carefully
Choose only one correct option
Try to answer on your own first
Check the explanation if you get it wrong

👉 Tip: Attempt honestly without guessing to get the real idea of your preparation.

Computer Introduction Quiz : 50 Questions

1. What is a computer?

Correct Answer: B) Electronic machine
A computer is an electronic device that processes data.

2. Who is known as the Father of Computer?

Correct Answer: B) Charles Babbage
He designed the Analytical Engine.

3. What does CPU stand for?

Correct Answer: B) Central Processing Unit
CPU is the brain of the computer.

4. Which device is used for input?

Correct Answer: C) Keyboard
Keyboard is used to input data.

5. Which device shows output?

Correct Answer: C) Monitor
Monitor displays output.

6. IPO stands for?

Correct Answer: A) Input Process Output
It describes computer working cycle.

7. Which is the brain of computer?

Correct Answer: C) CPU
CPU controls all operations.

8. ALU is part of?

Correct Answer: B) CPU
ALU performs calculations.

9. Full form of RAM?

Correct Answer: A) Random Access Memory
RAM stores temporary data.

10. Full form of ROM?

Correct Answer: A) Read Only Memory
ROM stores permanent data.

11. Which memory is temporary?

Correct Answer: B) RAM
RAM loses data when power is off.

12. Which is secondary memory?

Correct Answer: C) Hard Disk
It stores data permanently.

13. Computer works on which system?

Correct Answer: B) Binary
Computers use 0 and 1.

14. Which is an output device?

Correct Answer: A) Printer
Printer provides output.

15. Which is input device?

Correct Answer: C) Scanner
Scanner inputs data.

16. First generation computers used?

Correct Answer: C) Vacuum Tube
Used in first generation computers.

17. Second generation used?

Correct Answer: B) Transistor
Transistors replaced vacuum tubes.

18. Third generation used?

Correct Answer: A) IC
IC improved efficiency and size.

19. Fourth generation is based on?

Correct Answer: B) Microprocessor
Modern computers use microprocessors.

20. Fifth generation focuses on?

Correct Answer: B) AI
Focus is on Artificial Intelligence.

21. Full form of ALU?

Correct Answer: A) Arithmetic Logic Unit
Performs calculations and logic.

22. Which controls all operations?

Correct Answer: B) CU
Control Unit manages operations.

23. Which is fastest computer?

Correct Answer: A) Supercomputer
Most powerful and fastest.

24. Personal computer is?

Correct Answer: B) Microcomputer
PCs are microcomputers.

25. Which is not hardware?

Correct Answer: C) Software
Software is not physical.

26. Which is system software?

Correct Answer: B) Windows
Operating system is system software.

27. Which is application software?

Correct Answer: C) MS Excel
Used for user tasks.

28. What is data?

Correct Answer: B) Raw facts
Data is unprocessed facts.

29. What is information?

Correct Answer: B) Processed data
Information is processed data.

30. Which memory is permanent?

Correct Answer: B) ROM
ROM stores data permanently.

31. Which device prints output?

Correct Answer: B) Printer
Printer gives output on paper.

32. Full form of USB?

Correct Answer: A) Universal Serial Bus
USB is used to connect devices.

33. Which is a storage device?

Correct Answer: C) Hard Disk
Stores data permanently.

34. Which is volatile memory?

Correct Answer: B) RAM
Data is lost when power is off.

35. Which is non-volatile memory?

Correct Answer: C) ROM
Retains data without power.

36. What is software?

Correct Answer: B) Program
Software is a set of instructions.

37. Which is a pointing device?

Correct Answer: B) Mouse
Used to select and point items.

38. Which is NOT an input device?

Correct Answer: C) Printer
Printer is an output device.

39. Full form of CU?

Correct Answer: A) Control Unit
Controls all operations.

40. Which is an example of output?

Correct Answer: B) Result
Output is the result of processing.

41. Internet is?

Correct Answer: B) Network
Internet is a global network.

42. Which is not a storage device?

Correct Answer: D) Mouse
Mouse is an input device.

43. Which performs logical operations?

Correct Answer: B) ALU
ALU handles logical operations.

44. Smallest unit of data?

Correct Answer: B) Bit
Bit is 0 or 1.

45. 1 Byte equals?

Correct Answer: B) 8 bits
1 Byte = 8 bits.

46. Which is an operating system?

Correct Answer: C) Windows
Windows is an OS.

47. Which is a web browser?

Correct Answer: B) Chrome
Used to access internet.

48. Output of processing is called?

Correct Answer: B) Information
Processed data is information.

49. Hybrid computer is?

Correct Answer: C) Both analog and digital
Combines both systems.

50. Full form of IT?

Correct Answer: A) Information Technology
IT deals with computer technology.

Quiz Results

🧠 Computer Introduction – 50 MCQs (With Answers & Explanations)

1. What is a computer?

A. Mechanical device
B. Electronic machine
C. Manual tool
D. None

Answer: B
Explanation: A computer is an electronic device that processes data.

2. Who is known as the Father of Computer? (PYQ)

A. Alan Turing
B. Charles Babbage
C. John von Neumann
D. Bill Gates

Answer: B
Explanation: Charles Babbage designed the Analytical Engine.

3. What does CPU stand for?

A. Central Process Unit
B. Central Processing Unit
C. Computer Processing Unit
D. Control Processing Unit

Answer: B
Explanation: CPU is the main processing unit of a computer.

4. Which device is used for input?

A. Monitor
B. Printer
C. Keyboard
D. Speaker

Answer: C
Explanation: Keyboard is used to enter data.

5. Which device shows output?

A. Mouse
B. Keyboard
C. Monitor
D. Scanner

Answer: C
Explanation: Monitor displays results.

6. IPO stands for?

A. Input Process Output
B. Input Program Output
C. Internal Process Output
D. None

Answer: A
Explanation: It describes computer working cycle.

7. Which is the brain of computer? (PYQ)

A. RAM
B. Hard Disk
C. CPU
D. Monitor

Answer: C
Explanation: CPU controls all operations.

8. ALU is part of?

A. Memory
B. CPU
C. Input Unit
D. Output Unit

Answer: B
Explanation: ALU performs calculations.

9. Full form of RAM?

A. Random Access Memory
B. Read Access Memory
C. Rapid Access Memory
D. None

Answer: A
Explanation: RAM stores temporary data.

10. Full form of ROM?

A. Read Only Memory
B. Random Only Memory
C. Rapid Output Memory
D. None

Answer: A
Explanation: ROM stores permanent data.

11. Which memory is temporary?

A. ROM
B. RAM
C. Hard Disk
D. CD

Answer: B
Explanation: RAM loses data when power off.

12. Which is secondary memory?

A. RAM
B. ROM
C. Hard Disk
D. Cache

Answer: C
Explanation: Hard disk stores long-term data.

13. Computer works on which system?

A. Decimal
B. Binary
C. Octal
D. Roman

Answer: B
Explanation: Computers use 0 and 1.

14. Which is an output device?

A. Printer
B. Scanner
C. Keyboard
D. Mouse

Answer: A
Explanation: Printer gives output.

15. Which is input device?

A. Speaker
B. Monitor
C. Scanner
D. Printer

Answer: C
Explanation: Scanner inputs data.

16. First generation computers used?

A. IC
B. Transistor
C. Vacuum Tube
D. Microprocessor

Answer: C
Explanation: Earliest computers used vacuum tubes.

17. Second generation used?

A. IC
B. Transistor
C. Vacuum Tube
D. AI

Answer: B
Explanation: Transistors replaced vacuum tubes.

18. Third generation used?

A. IC
B. Transistor
C. Vacuum Tube
D. AI

Answer: A
Explanation: IC made computers smaller.

19. Fourth generation is based on?

A. AI
B. Microprocessor
C. IC
D. Vacuum

Answer: B
Explanation: Modern computers use microprocessors.

20. Fifth generation focuses on?

A. Hardware
B. AI
C. Vacuum
D. Manual

Answer: B
Explanation: AI-based systems.

21. What is full form of ALU?

A. Arithmetic Logic Unit
B. Automatic Logic Unit
C. Advanced Logic Unit
D. None

Answer: A
Explanation: Performs calculations.

22. Which controls all operations?

A. ALU
B. CU
C. RAM
D. ROM

Answer: B
Explanation: CU directs operations.

23. Which is fastest computer?

A. Supercomputer
B. Mainframe
C. Mini
D. Micro

Answer: A
Explanation: Used for complex tasks.

24. Personal computer is?

A. Supercomputer
B. Microcomputer
C. Mainframe
D. Mini

Answer: B
Explanation: PCs are microcomputers.

25. Which is not hardware?

A. Monitor
B. Keyboard
C. Software
D. CPU

Answer: C
Explanation: Software is intangible.

26. Which is system software?

A. MS Word
B. Windows
C. Excel
D. Paint

Answer: B
Explanation: OS controls system.

27. Which is application software?

A. Windows
B. Linux
C. MS Excel
D. BIOS

Answer: C
Explanation: Used for tasks.

28. What is data?

A. Processed info
B. Raw facts
C. Output
D. Program

Answer: B
Explanation: Data is raw input.

29. What is information?

A. Raw data
B. Processed data
C. Input
D. Code

Answer: B
Explanation: Processed data = information.

30. Which memory is permanent?

A. RAM
B. ROM
C. Cache
D. Register

Answer: B
Explanation: ROM retains data.

31. Which device prints output?

A. Scanner
B. Printer
C. Keyboard
D. Mouse

Answer: B
Explanation: Printer outputs on paper.

32. Full form of USB?

A. Universal Serial Bus
B. Unique Serial Bus
C. Ultra System Bus
D. None

Answer: A
Explanation: Common connection port.

33. Which is storage device?

A. Monitor
B. Keyboard
C. Hard Disk
D. Mouse

Answer: C
Explanation: Stores data.

34. Which is volatile memory?

A. ROM
B. RAM
C. HDD
D. SSD

Answer: B
Explanation: Needs power to store data.

35. Which is non-volatile?

A. RAM
B. Cache
C. ROM
D. Register

Answer: C
Explanation: Retains data without power.

36. What is software?

A. Physical part
B. Program
C. Device
D. Tool

Answer: B
Explanation: Set of instructions.

37. Which is pointing device?

A. Keyboard
B. Mouse
C. Monitor
D. Printer

Answer: B
Explanation: Used to point/select.

38. Which is not input?

A. Keyboard
B. Mouse
C. Printer
D. Scanner

Answer: C
Explanation: Printer is output.

39. Full form of CU?

A. Control Unit
B. Central Unit
C. Computer Unit
D. None

Answer: A
Explanation: Manages operations.

40. Which is example of output?

A. Data
B. Result
C. Input
D. Program

Answer: B
Explanation: Output is result.

41. Internet is?

A. Device
B. Network
C. Software
D. Program

Answer: B
Explanation: Global network.

42. Which is not storage?

A. RAM
B. HDD
C. Pen Drive
D. Mouse

Answer: D
Explanation: Mouse is input device.

43. Which performs logic?

A. CU
B. ALU
C. RAM
D. HDD

Answer: B
Explanation: ALU handles logic.

44. Which is smallest unit?

A. Byte
B. Bit
C. KB
D. MB

Answer: B
Explanation: Bit = 0 or 1.

45. 1 Byte = ?

A. 4 bits
B. 8 bits
C. 16 bits
D. 2 bits

Answer: B
Explanation: Standard unit.

46. Which is OS?

A. Word
B. Excel
C. Windows
D. Chrome

Answer: C
Explanation: Operating system.

47. Which is browser?

A. Windows
B. Chrome
C. CPU
D. RAM

Answer: B
Explanation: Used to access internet.

48. What is output of processing?

A. Data
B. Information
C. Input
D. Program

Answer: B
Explanation: Processed data.

49. Which is hybrid computer?

A. Only digital
B. Only analog
C. Both
D. None

Answer: C
Explanation: Combines both types.

50. What is full form of IT?

A. Information Technology
B. Internal Tech
C. Input Tech
D. None

Answer: A
Explanation: Field of computer tech.