Basic Components of a Computer System MCQs

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1. : Which component is considered the brain of the computer?
(A) RAM
(B) Hard Drive
(C) CPU
(D) Motherboard

2. : What does RAM stand for in computer systems?
(A) Random Access Memory
(B) Read Access Memory
(C) Rapid Access Memory
(D) Read-Only Memory

3. : Which component is responsible for storing data permanently?
(A) RAM
(B) CPU
(C) Hard Drive
(D) GPU

4. : What is the primary function of the motherboard in a computer system?
(A) To process data
(B) To store data
(C) To connect and allow communication between different components
(D) To manage power supply

5. : Which component is responsible for rendering images and videos?
(A) CPU
(B) RAM
(C) GPU
(D) Hard Drive

6. : What is the role of the power supply unit (PSU) in a computer system?
(A) To process data
(B) To store data
(C) To convert electrical power from an outlet into usable power for the computer
(D) To manage data flow between components

7. : Which component provides the interface for connecting external devices to a computer?
(A) CPU
(B) Hard Drive
(C) Motherboard
(D) Power Supply Unit

8. : What type of memory is used for storing firmware and system settings?
(A) RAM
(B) ROM
(C) Hard Drive
(D) Cache

9. : Which component is used for temporary storage of data that the CPU is currently processing?
(A) Hard Drive
(B) RAM
(C) ROM
(D) GPU

10. : What is the purpose of the Central Processing Unit (CPU)?
(A) To store data permanently
(B) To manage the power supply
(C) To execute instructions and process data
(D) To display graphics

11. : Which component connects the CPU to other hardware components?
(A) RAM
(B) Motherboard
(C) GPU
(D) Hard Drive

12. : What type of storage is typically used for long-term data storage and is non-volatile?
(A) RAM
(B) SSD
(C) Cache
(D) CPU

13. : Which of the following is an input device?
(A) Monitor
(B) Printer
(C) Keyboard
(D) Speaker

14. : What is the primary function of a computer’s heat sink?
(A) To store data
(B) To manage power supply
(C) To dissipate heat from the CPU or GPU
(D) To process data

15. : Which component provides the physical interface for connecting expansion cards?
(A) CPU
(B) RAM
(C) Motherboard
(D) Hard Drive

16. : Which component is responsible for managing and directing data between the CPU, RAM, and other components?
(A) Power Supply Unit
(B) Motherboard
(C) GPU
(D) Hard Drive

17. : What is the role of the cache memory in a computer system?
(A) To provide long-term data storage
(B) To temporarily store frequently accessed data for quick access by the CPU
(C) To manage external device connections
(D) To render graphics

18. : Which of the following is considered a secondary storage device?
(A) RAM
(B) CPU
(C) Hard Drive
(D) Cache

19. : What is the purpose of the computer’s bus system?
(A) To store data permanently
(B) To process data
(C) To transfer data between different components of the computer
(D) To manage power supply

20. : Which component is primarily responsible for the boot process of a computer?
(A) RAM
(B) Hard Drive
(C) CPU
(D) ROM

21. : Which part of the computer system is essential for network connectivity?
(A) GPU
(B) Network Interface Card (NIC)
(C) Hard Drive
(D) Power Supply Unit

22. : What does BIOS stand for in a computer system?
(A) Basic Input Output System
(B) Binary Input Output System
(C) Basic Integrated Output System
(D) Binary Integrated Output System

23. : Which component is used to provide visual output from the computer?
(A) Monitor
(B) Keyboard
(C) Mouse
(D) Printer

24. : What is the primary purpose of a computer’s RAM?
(A) To permanently store files
(B) To manage power supply
(C) To provide temporary storage for data being processed
(D) To handle graphics rendering

25. : Which component is often referred to as the “heart” of the computer system?
(A) RAM
(B) Hard Drive
(C) CPU
(D) Motherboard

26. : What is the function of the computer’s power supply unit (PSU)?
(A) To process data
(B) To provide electrical power to the computer’s components
(C) To connect external devices
(D) To store data

27. : Which type of storage device uses flash memory and has no moving parts?
(A) Hard Drive
(B) SSD
(C) Optical Drive
(D) Tape Drive

28. : Which component is primarily responsible for sound output in a computer system?
(A) GPU
(B) Sound Card
(C) CPU
(D) Network Card

29. : What is the function of the computer’s heat sink?
(A) To store data
(B) To manage power supply
(C) To cool the CPU or GPU
(D) To process data

30. : Which component is responsible for handling data transfers between the CPU and RAM?
(A) Motherboard
(B) Hard Drive
(C) GPU
(D) Power Supply Unit

31. : Which of the following is a common external storage device?
(A) RAM
(B) Hard Drive
(C) SSD
(D) Flash Drive

32. : Which computer component is used to display graphical output?
(A) Monitor
(B) Keyboard
(C) Mouse
(D) Speaker

33. : What type of memory is known for its high-speed access and is used to speed up processing?
(A) RAM
(B) Cache
(C) Hard Drive
(D) ROM

34. : Which component connects the CPU, RAM, and other hardware components together?
(A) Power Supply Unit
(B) Motherboard
(C) GPU
(D) Hard Drive

35. : Which device is used to input data into a computer system?
(A) Monitor
(B) Hard Drive
(C) Printer
(D) Keyboard

36. : Which component is crucial for maintaining the computer’s clock speed?
(A) RAM
(B) Hard Drive
(C) CPU
(D) Motherboard

37. : What does a computer’s ROM typically store?
(A) Temporary data
(B) Frequently accessed files
(C) System firmware and startup instructions
(D) Processed data

38. : Which component is responsible for cooling the CPU and preventing overheating?
(A) Heat Sink
(B) RAM
(C) Hard Drive
(D) Power Supply Unit

39. : What type of memory is volatile and loses its data when the power is off?
(A) ROM
(B) Hard Drive
(C) Cache
(D) RAM

40. : Which part of the computer is used for network communication and internet access?
(A) Motherboard
(B) GPU
(C) Network Interface Card (NIC)
(D) Power Supply Unit

41. : What is the main function of the GPU in a computer system?
(A) To manage power supply
(B) To process and render graphics
(C) To store data
(D) To connect external devices

42. : Which of the following components is an example of secondary storage?
(A) RAM
(B) Cache
(C) Hard Drive
(D) CPU

43. : Which component is responsible for processing and executing instructions?
(A) RAM
(B) CPU
(C) Hard Drive
(D) Motherboard

44. : What type of storage device is typically used for optical media?
(A) Hard Drive
(B) SSD
(C) Optical Drive
(D) Flash Drive

45. : Which component controls the computer’s input and output operations?
(A) Hard Drive
(B) CPU
(C) Motherboard
(D) Power Supply Unit

46. : Which of the following is not a primary component of a computer system?
(A) CPU
(B) RAM
(C) Monitor
(D) Hard Drive

47. : What is the function of a computer’s power supply unit (PSU)?
(A) To process data
(B) To provide power to the internal components of the computer
(C) To store data
(D) To manage memory access

48. : Which component helps in increasing the speed of data access and retrieval?
(A) Hard Drive
(B) SSD
(C) RAM
(D) Cache

49. : What type of memory is used to store system firmware and is non-volatile?
(A) RAM
(B) Hard Drive
(C) ROM
(D) Cache

50. : Which component is primarily used to manage and synchronize the computer’s internal operations?
(A) CPU
(B) Hard Drive
(C) RAM
(D) Motherboard

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