Computer Architecture and Components MCQ Test
Questions: 30
Questions
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1. Which of the following is responsible for interpreting and executing instructions in a computer system?
- a) Central Processing Unit (CPU)
- b) Random Access Memory (RAM)
- c) Hard Disk Drive (HDD)
- d) Motherboard
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2. What does the Control Unit (CU) in a CPU do?
- a) It performs arithmetic and logical operations.
- b) It stores data temporarily for fast access.
- c) It directs the operation of the processor.
- d) It communicates with input/output devices.
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3. What is the primary function of the Arithmetic and Logic Unit (ALU)?
- a) It manages system memory.
- b) It handles logical operations and arithmetic calculations.
- c) It processes graphical data.
- d) It stores program data.
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4. What type of memory is volatile and used to temporarily store data that the CPU is currently working on?
- a) Read-Only Memory (ROM)
- b) Hard Disk
- c) Random Access Memory (RAM)
- d) Flash Memory
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5. What is the function of the system bus in computer architecture?
- a) It manages power supply to the components.
- b) It transfers data between different computer components.
- c) It stores instructions and data temporarily.
- d) It connects peripheral devices to the CPU.
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6. The motherboard in a computer system connects which of the following components?
- a) CPU
- b) RAM
- c) Hard Drive
- d) All of the above
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7. Which of the following is a key characteristic of RISC (Reduced Instruction Set Computing)?
- a) It uses complex instructions.
- b) It performs many operations in one instruction.
- c) It uses a small set of simple instructions.
- d) It relies on external memory storage.
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8. What is the purpose of a cache memory in a computer system?
- a) To store data for long-term use.
- b) To store operating system files.
- c) To temporarily store frequently accessed data for fast retrieval.
- d) To store system configuration files.
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9. What is the full form of "BIOS" in computer architecture?
- a) Basic Integrated Operating System
- b) Basic Input Output System
- c) Basic Input Output Software
- d) Binary Input Output System
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10. Which of the following is an example of non-volatile memory?
- a) RAM
- b) Cache Memory
- c) ROM
- d) Register
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11. Which architecture uses a single set of instructions for both data and program storage?
- a) Harvard Architecture
- b) Von Neumann Architecture
- c) RISC Architecture
- d) CISC Architecture
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12. What is the main function of a register in a CPU?
- a) To store instructions
- b) To perform calculations
- c) To store temporary data for quick access
- d) To communicate with external devices
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13. What is the primary function of the system clock in a computer?
- a) It generates the control signals for the CPU.
- b) It manages data input and output.
- c) It maintains the computer’s time.
- d) It executes program instructions.
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14. Which of the following is used to convert digital signals into analog signals for transmission over a network?
- a) Modem
- b) Router
- c) Network Interface Card (NIC)
- d) Hub
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15. The term "bus" in computer architecture refers to what?
- a) A software used to manage data transfer.
- b) A communication pathway used to transfer data between components.
- c) A component that stores data permanently.
- d) A type of memory storage device.
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16. What does the acronym "GPU" stand for in computer architecture?
- a) General Processing Unit
- b) General Purpose Unit
- c) Graphics Processing Unit
- d) Graphics Programming Unit
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17. What is a key characteristic of a multiprocessor system?
- a) It has multiple CPUs for parallel processing tasks.
- b) It uses a single processor to handle all tasks.
- c) It can only process tasks one at a time.
- d) It uses a single core for high-speed computing.
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18. The term "virtual memory" in computer systems refers to?
- a) Memory allocated on external devices.
- b) Memory that is only used temporarily.
- c) A method of using hard drive space as additional RAM.
- d) A special type of cache memory.
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19. What is the role of the motherboard’s power connectors?
- a) To store data
- b) To distribute power to the CPU and other components
- c) To control the system clock
- d) To communicate with external devices
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20. Which of the following describes the term "overclocking" in computer architecture?
- a) Increasing the speed of the CPU beyond its rated capacity.
- b) Reducing the speed of the GPU for efficiency.
- c) Using more than one CPU to process tasks.
- d) Optimizing memory usage.
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21. What does an "I/O port" refer to in computer architecture?
- a) A component that manages internal data storage.
- b) A connection point for peripherals like keyboards and monitors.
- c) A type of processor used for data manipulation.
- d) A part of the memory system that stores instructions.
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22. What is the purpose of an expansion slot on the motherboard?
- a) To add additional memory
- b) To add peripheral devices or expansion cards
- c) To store operating system files
- d) To connect the power supply
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23. What is the function of a heat sink in a computer system?
- a) To store data temporarily
- b) To cool down the CPU and other components
- c) To convert digital signals into analog signals
- d) To provide extra power to the motherboard
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24. Which of the following best describes the function of a power supply unit (PSU)?
- a) To regulate the flow of data between components
- b) To provide electrical power to the computer's internal components
- c) To store instructions and data
- d) To handle input/output operations
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25. Which of the following is NOT a component of the computer’s CPU?
- a) Arithmetic and Logic Unit (ALU)
- b) Control Unit (CU)
- c) Memory Unit (MU)
- d) Graphics Processing Unit (GPU)
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26. Which component in the computer architecture is used to store data permanently, even when the computer is powered off?
- a) Random Access Memory (RAM)
- b) Central Processing Unit (CPU)
- c) Read-Only Memory (ROM)
- d) Hard Disk Drive (HDD)
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27. In the Von Neumann architecture, where is the program code stored?
- a) In the CPU
- b) In the Memory
- c) In the Cache
- d) In the Input/Output unit
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28. Which of the following is the correct function of the motherboard chipset?
- a) It controls the flow of data between the CPU, memory and peripheral devices.
- b) It stores the operating system.
- c) It generates the system clock signals.
- d) It performs calculations and logical operations.
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29. In the context of computer architecture, what is pipelining?
- a) A process that involves performing multiple instructions simultaneously.
- b) A method for storing instructions in memory.
- c) A way to manage power consumption in processors.
- d) A technique for improving data transfer speeds.
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30. In a computer, what is the function of the video card?
- a) To perform all arithmetic calculations
- b) To display graphics and video on the monitor
- c) To store data for future use
- d) To handle input from the keyboard
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