Basic Components of a Computer System MCQs

Which component is considered the brain of the computer?
- A) RAM
- B) Hard Drive
- C) CPU
- D) Motherboard
  Answer: C
What does RAM stand for in computer systems?
- A) Random Access Memory
- B) Read Access Memory
- C) Rapid Access Memory
- D) Read-Only Memory
  Answer: A
Which component is responsible for storing data permanently?
- A) RAM
- B) CPU
- C) Hard Drive
- D) GPU
  Answer: C
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
  Answer: C
Which component is responsible for rendering images and videos?
- A) CPU
- B) RAM
- C) GPU
- D) Hard Drive
  Answer: C
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
  Answer: C
Which component provides the interface for connecting external devices to a computer?
- A) CPU
- B) Hard Drive
- C) Motherboard
- D) Power Supply Unit
  Answer: C
What type of memory is used for storing firmware and system settings?
- A) RAM
- B) ROM
- C) Hard Drive
- D) Cache
  Answer: B
Which component is used for temporary storage of data that the CPU is currently processing?
- A) Hard Drive
- B) RAM
- C) ROM
- D) GPU
  Answer: B
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
  Answer: C
Which component connects the CPU to other hardware components?
- A) RAM
- B) Motherboard
- C) GPU
- D) Hard Drive
  Answer: B
What type of storage is typically used for long-term data storage and is non-volatile?
- A) RAM
- B) SSD
- C) Cache
- D) CPU
  Answer: B
Which of the following is an input device?
- A) Monitor
- B) Printer
- C) Keyboard
- D) Speaker
  Answer: C
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
  Answer: C
Which component provides the physical interface for connecting expansion cards?
- A) CPU
- B) RAM
- C) Motherboard
- D) Hard Drive
  Answer: C
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
  Answer: B
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
  Answer: B
Which of the following is considered a secondary storage device?
- A) RAM
- B) CPU
- C) Hard Drive
- D) Cache
  Answer: C
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
  Answer: C
Which component is primarily responsible for the boot process of a computer?
- A) RAM
- B) Hard Drive
- C) CPU
- D) ROM
  Answer: D
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
  Answer: B
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
  Answer: A
Which component is used to provide visual output from the computer?
- A) Monitor
- B) Keyboard
- C) Mouse
- D) Printer
  Answer: A
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
  Answer: C
Which component is often referred to as the “heart” of the computer system?
- A) RAM
- B) Hard Drive
- C) CPU
- D) Motherboard
  Answer: C
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
  Answer: B
Which type of storage device uses flash memory and has no moving parts?
- A) Hard Drive
- B) SSD
- C) Optical Drive
- D) Tape Drive
  Answer: B
Which component is primarily responsible for sound output in a computer system?
- A) GPU
- B) Sound Card
- C) CPU
- D) Network Card
  Answer: B
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
  Answer: C
Which component is responsible for handling data transfers between the CPU and RAM?
- A) Motherboard
- B) Hard Drive
- C) GPU
- D) Power Supply Unit
  Answer: A
Which of the following is a common external storage device?
- A) RAM
- B) Hard Drive
- C) SSD
- D) Flash Drive
  Answer: D
Which computer component is used to display graphical output?
- A) Monitor
- B) Keyboard
- C) Mouse
- D) Speaker
  Answer: A
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
  Answer: B
Which component connects the CPU, RAM, and other hardware components together?
- A) Power Supply Unit
- B) Motherboard
- C) GPU
- D) Hard Drive
  Answer: B
Which device is used to input data into a computer system?
- A) Monitor
- B) Hard Drive
- C) Printer
- D) Keyboard
  Answer: D
Which component is crucial for maintaining the computer’s clock speed?
- A) RAM
- B) Hard Drive
- C) CPU
- D) Motherboard
  Answer: C
What does a computer’s ROM typically store?
- A) Temporary data
- B) Frequently accessed files
- C) System firmware and startup instructions
- D) Processed data
  Answer: C
Which component is responsible for cooling the CPU and preventing overheating?
- A) Heat Sink
- B) RAM
- C) Hard Drive
- D) Power Supply Unit
  Answer: A
What type of memory is volatile and loses its data when the power is off?
- A) ROM
- B) Hard Drive
- C) Cache
- D) RAM
  Answer: D
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
  Answer: C
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
  Answer: B
Which of the following components is an example of secondary storage?
- A) RAM
- B) Cache
- C) Hard Drive
- D) CPU
  Answer: C
Which component is responsible for processing and executing instructions?
- A) RAM
- B) CPU
- C) Hard Drive
- D) Motherboard
  Answer: B
What type of storage device is typically used for optical media?
- A) Hard Drive
- B) SSD
- C) Optical Drive
- D) Flash Drive
  Answer: C
Which component controls the computer’s input and output operations?
- A) Hard Drive
- B) CPU
- C) Motherboard
- D) Power Supply Unit
  Answer: C

Which of the following is not a primary component of a computer system?
- A) CPU
- B) RAM
- C) Monitor
- D) Hard Drive
  Answer: C
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
  Answer: B
Which component helps in increasing the speed of data access and retrieval?
- A) Hard Drive
- B) SSD
- C) RAM
- D) Cache
  Answer: D
What type of memory is used to store system firmware and is non-volatile?
- A) RAM
- B) Hard Drive
- C) ROM
- D) Cache
  Answer: C
Which component is primarily used to manage and synchronize the computer’s internal operations?
- A) CPU
- B) Hard Drive
- C) RAM
- D) Motherboard
  Answer: A

Basic Components of a Computer System MCQs
By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 20, 2024

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