Here are 50 multiple choice questions (MCQs) on Introduction to Computers, each with four options (A–D) and answers listed separately below.
Objective Questions (MCQs):
1. What is the full form of CPU?
A. Central Print Unit
B. Central Process Unit
C. Central Processing Unit
D. Control Processing Unit
2. Which of the following is an input device?
A. Monitor
B. Printer
C. Keyboard
D. Speaker
3. Which memory is volatile?
A. ROM
B. Hard disk
C. RAM
D. CD-ROM
4. Which of these is an output device?
A. Mouse
B. Monitor
C. Keyboard
D. Joystick
5. What does RAM stand for?
A. Read Access Memory
B. Random Access Memory
C. Rapid Access Memory
D. Run Access Memory
6. Which is not a type of computer?
A. Supercomputer
B. Mainframe
C. Android
D. Laptop
7. The brain of the computer is the:
A. RAM
B. Hard disk
C. CPU
D. Monitor
8. A computer cannot work without:
A. Printer
B. Scanner
C. Software
D. Joystick
9. Which of the following is application software?
A. Microsoft Word
B. Windows
C. Linux
D. BIOS
10. Which device stores data permanently?
A. RAM
B. Cache
C. ROM
D. Hard Drive
11. Speed of a processor is measured in:
A. RPM
B. Mbps
C. GHz
D. DPI
12. A device used to connect to the internet is:
A. Printer
B. Router
C. Scanner
D. Projector
13. Operating System is a:
A. Programming language
B. Application software
C. System software
D. Hardware
14. The unit that performs arithmetic operations is:
A. CU
B. ALU
C. RAM
D. HDD
15. What does USB stand for?
A. Uniform Serial Bus
B. Universal Serial Bus
C. Unique Standard Bus
D. Universal Standard Bus
16. Which one is a primary memory?
A. Pen drive
B. ROM
C. RAM
D. CD-ROM
17. Which device shows visual output?
A. Speaker
B. Mouse
C. Monitor
D. CPU
18. GUI means:
A. Graphical User Interface
B. Global User Internet
C. General User Interface
D. Great Utility Interface
19. Which of these is not an input device?
A. Mouse
B. Monitor
C. Scanner
D. Keyboard
20. Software is:
A. Tangible part
B. Hardware
C. Instructions to run a computer
D. All of the above
21. Windows is an example of:
A. Hardware
B. Application software
C. System software
D. Utility
22. Smallest data unit is:
A. Nibble
B. Byte
C. Bit
D. Word
23. Which one is not a programming language?
A. Java
B. Python
C. C++
D. Excel
24. A file is a collection of:
A. Icons
B. Data
C. Folders
D. Printers
25. Internet means:
A. Interconnected networks
B. Intranet
C. Internal network
D. Interlocked terminals
26. A computer virus is:
A. Antivirus
B. Software
C. Malicious software
D. None
27. Hardware refers to:
A. Programs
B. Physical parts
C. Instructions
D. Files
28. BIOS is stored in:
A. RAM
B. ROM
C. Hard disk
D. Pen drive
29. Which is used for printing?
A. Projector
B. Mouse
C. Printer
D. Monitor
30. MS Word is:
A. System software
B. Operating system
C. Utility
D. Application software
31. Which one is used for backup?
A. Scanner
B. Hard Drive
C. Mouse
D. RAM
32. Google is a:
A. Browser
B. Search Engine
C. Website
D. Operating system
33. One high-level language is:
A. HTML
B. Python
C. Binary
D. Machine code
34. ALU stands for:
A. Arithmetic Logic Unit
B. Applied Logic Unit
C. Automatic Logic Unit
D. Algorithm Logic Unit
35. A pointing device is:
A. Printer
B. Mouse
C. Monitor
D. CPU
36. HTTP stands for:
A. HyperText Transfer Protocol
B. HyperType Text Program
C. HighText Transfer Process
D. None
37. The system booting is controlled by:
A. RAM
B. Mouse
C. BIOS
D. Keyboard
38. Bit stands for:
A. Binary digit
B. Binary type
C. Basic integer
D. Bitwise
39. Firewall protects against:
A. Hackers
B. Printers
C. RAM
D. Files
40. For storing large data, we use:
A. RAM
B. ROM
C. External Hard Disk
D. Cache
41. Scanner is used to:
A. Display documents
B. Print photos
C. Convert hardcopy to softcopy
D. Connect internet
42. Joystick is a/an:
A. Input device
B. Output device
C. Storage device
D. Display device
43. IP address is used to:
A. Play games
B. Identify a computer on a network
C. Program in Java
D. Print
44. USB port is used for:
A. Keyboard
B. CD-ROM
C. Flash Drive
D. Mouse
45. Ctrl + C is used to:
A. Paste
B. Copy
C. Cut
D. Delete
46. Cloud computing allows:
A. Offline storage
B. Manual data entry
C. Remote data storage
D. Creating viruses
47. Backspace key is used to:
A. Delete forward
B. Move cursor
C. Delete left character
D. Open settings
48. Windows was developed by:
A. Apple
B. IBM
C. Microsoft
D. Google
49. Multitasking means:
A. One job at a time
B. No task
C. Switching off
D. Running many programs
50. A modem is used to:
A. Display images
B. Convert data
C. Store data
D. Protect data
Answer Key:
1. C
2. C
3. C
4. B
5. B
6. C
7. C
8. C
9. A
10. D
11. C
12. B
13. C
14. B
15. B
16. C
17. C
18. A
19. B
20. C
21. C
22. C
23. D
24. B
25. A
26. C
27. B
28. B
29. C
30. D
31. B
32. B
33. B
34. A
35. B
36. A
37. C
38. A
39. A
40. C
41. C
42. A
43. B
44. C
45. B
46. C
47. C
48. C
49. D
50. B
