Elementary Computer Applications- MCQs- Paper- 02

Elementary Computer Applications- 

MCQs- Paper- 02

Computer organization textbook

Topics :- CPU & Computer Architecture

1. CPU stands for:
A) Central Process Unit
B) Central Processing Unit
C) Computer Processing Unit
D) Control Processing Unit
✅ Answer: B

2. The brain of the computer is:
A) RAM
B) Hard Disk
C) CPU
D) Monitor
✅ Answer: C

3. CPU mainly consists of:
A) ALU and CU
B) RAM and ROM
C) Input and Output
D) Cache and Register
✅ Answer: A

4. ALU performs:
A) Logical operations only
B) Arithmetic operations only
C) Arithmetic and Logical operations
D) Storage operations
✅ Answer: C

5. CU stands for:
A) Compute Unit
B) Control Unit
C) Central Unit
D) Core Unit
✅ Answer: B

6. Which unit controls all operations of the computer?
A) ALU
B) CU
C) RAM
D) Cache
✅ Answer: B

7. Registers are located in:
A) Hard disk
B) RAM
C) CPU
D) ROM
✅ Answer: C

8. Which is fastest in CPU operations?
A) Cache
B) Register
C) RAM
D) ROM
✅ Answer: B

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🔹 Primary Memory – RAM / ROM / Cache

9. Primary memory is also known as:
A) Secondary memory
B) Main memory
C) Virtual memory
D) Backup memory
✅ Answer: B

10. RAM is:
A) Non-volatile
B) Permanent
C) Volatile
D) Read-only
✅ Answer: C

11. Volatile memory means:
A) Cheap memory
B) Slow memory
C) Data lost when power off
D) Read-only memory
✅ Answer: C

12. ROM is used to store:
A) Temporary files
B) Permanent instructions
C) User documents
D) Cache data
✅ Answer: B

13. Which memory cannot be modified easily?
A) RAM
B) ROM
C) Cache
D) Register
✅ Answer: B

14. Cache memory is located:
A) In hard disk
B) Inside/near CPU
C) In monitor
D) In keyboard
✅ Answer: B

15. Cache memory is:
A) Slower than RAM
B) Faster than RAM
C) Same as ROM
D) External memory
✅ Answer: B

16. Which memory is fastest among these?
A) RAM
B) ROM
C) Cache
D) Hard disk
✅ Answer: C

17. Example of ROM type:
A) DRAM
B) SRAM
C) PROM
D) SDRAM
✅ Answer: C

18. SRAM is mainly used in:
A) Hard disks
B) Cache memory
C) ROM chips
D) Pen drives
✅ Answer: B

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🔹 RAM Types

19. DRAM stands for:
A) Dynamic RAM
B) Direct RAM
C) Digital RAM
D) Double RAM
✅ Answer: A

20. SRAM stands for:
A) Static RAM
B) Simple RAM
C) Secondary RAM
D) System RAM
✅ Answer: A

21. Which is faster?
A) DRAM
B) SRAM
C) ROM
D) Virtual memory
✅ Answer: B

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🔹 Secondary Memory

22. Secondary memory is:
A) Temporary
B) Volatile
C) Permanent storage
D) CPU memory
✅ Answer: C

23. Example of secondary memory:
A) Cache
B) Register
C) Hard Disk
D) RAM
✅ Answer: C

24. Which is NOT secondary storage?
A) SSD
B) DVD
C) RAM
D) Pen drive
✅ Answer: C

25. SSD stands for:
A) Solid State Drive
B) Super Storage Disk
C) Static Storage Device
D) System Storage Disk
✅ Answer: A

26. Magnetic storage device is:
A) CD
B) DVD
C) Hard disk
D) Blu-ray
✅ Answer: C

27. Optical storage device is:
A) SSD
B) CD-ROM
C) RAM
D) Cache
✅ Answer: B

28. Which has no moving parts?
A) HDD
B) SSD
C) DVD
D) Floppy
✅ Answer: B

29. Largest storage capacity usually:
A) Cache
B) RAM
C) Hard Disk
D) Register
✅ Answer: C

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🔹 Input Devices

30. Which is an input device?
A) Printer
B) Monitor
C) Keyboard
D) Speaker
✅ Answer: C

31. Scanner is used to:
A) Print
B) Scan images
C) Store data
D) Display data
✅ Answer: B

32. MICR is used in:
A) Schools
B) Hospitals
C) Banks
D) Gaming
✅ Answer: C

33. OCR stands for:
A) Optical Character Recognition
B) Output Code Reader
C) Optical Code Reader
D) Online Character Read
✅ Answer: A

34. Barcode reader is:
A) Output device
B) Input device
C) Storage device
D) Processing device
✅ Answer: B

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🔹 Output Devices

35. Which is an output device?
A) Mouse
B) Keyboard
C) Monitor
D) Scanner
✅ Answer: C

36. Printer produces:
A) Soft copy
B) Hard copy
C) Cache copy
D) RAM copy
✅ Answer: B

37. Plotter is mainly used for:
A) Audio output
B) Large drawings
C) Typing
D) Scanning
✅ Answer: B

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🔹 Pointing Devices

38. A mouse is a:
A) Storage device
B) Pointing device
C) Output device
D) CPU device
✅ Answer: B

39. Which is a pointing device?
A) Joystick
B) Monitor
C) Printer
D) Speaker
✅ Answer: A

40. Touchpad is commonly found in:
A) Desktop
B) Laptop
C) Printer
D) Scanner
✅ Answer: B

41. Trackball is:
A) Output device
B) Pointing device
C) Storage device
D) Memory device
✅ Answer: B

42. Light pen is used with:
A) Keyboard
B) Monitor
C) Printer
D) Speaker
✅ Answer: B

43. Touchscreen is:
A) Only output
B) Only input
C) Both input and output
D) Storage
✅ Answer: C

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🔹 Mixed Concept Questions

44. Which memory lies between CPU and RAM?
A) ROM
B) Cache
C) Hard disk
D) Register
✅ Answer: B

45. Which memory is cheapest per GB?
A) Register
B) Cache
C) RAM
D) Hard disk
✅ Answer: D

46. Which is non-volatile?
A) RAM
B) Cache
C) ROM
D) Register
✅ Answer: C

47. Input → Process → Output cycle is called:
A) IPO cycle
B) CPU cycle
C) RAM cycle
D) Memory cycle
✅ Answer: A

48. Fetch–Decode–Execute cycle belongs to:
A) Printer
B) CPU
C) Monitor
D) Mouse
✅ Answer: B

49. Which device converts soft copy to hard copy?
A) Scanner
B) Plotter
C) Printer
D) Monitor
✅ Answer: C

50. Which is fastest overall?
A) Hard Disk
B) RAM
C) Cache
D) Optical Disk
✅ Answer: C

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