Chapter 3: Computer Organisation — Online MCQ Test
COMPUTER APPLICATIONS · CLASS 11th · Tamil Nadu State Board
Practice Chapter 3: Computer Organisation with a free chapter-wise online MCQ test.
This chapter covers: This chapter covers microprocessors memory architectures and peripheral device connections. Students study instruction cycles RAM ROM cache memory types system buses and secondary....
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Chapter 3: Computer Organisation — Important Questions & Answers
Which component is known as the 'brain' of the computer?
- A. RAM
- B. CPU
- C. ROM
- D. Hard Disk
Answer: B. CPU
The CPU (Central Processing Unit) performs all calculations and logical operations, acting as the brain of the computer.
The CPU (Central Processing Unit) performs all calculations and logical operations, acting as the brain of the computer.
What does RAM stand for?
- A. Read Access Memory
- B. Random Access Memory
- C. Rapid Access Memory
- D. Readily Available Memory
Answer: B. Random Access Memory
RAM is an acronym for Random Access Memory, which is the volatile primary memory of a computer.
RAM is an acronym for Random Access Memory, which is the volatile primary memory of a computer.
Which component acts as a high-speed buffer between the CPU and main memory?
- A. Hard Disk
- B. Cache Memory
- C. Flash Drive
- D. Control Unit
Answer: B. Cache Memory
Cache memory is a small, fast memory unit placed between the CPU and main memory to speed up data access.
Cache memory is a small, fast memory unit placed between the CPU and main memory to speed up data access.
If a computer has a 32-bit address bus, how many memory locations can it address?
- A. 32
- B. 64 GB
- C. 2^32
- D. 2 * 32
Answer: C. 2^32
The address bus width determines the number of memory locations; a 32-bit bus can address 2^32 distinct locations.
The address bus width determines the number of memory locations; a 32-bit bus can address 2^32 distinct locations.
In computer architecture, what is the significance of the Control Unit (CU)?
- A. It performs all arithmetic calculations
- B. It temporarily stores data and instructions
- C. It directs the flow of data and governs system operations
- D. It provides long-term storage for the OS
Answer: C. It directs the flow of data and governs system operations
The Control Unit acts as the 'traffic cop' of the CPU, coordinating activities between the ALU, registers, and I/O devices.
The Control Unit acts as the 'traffic cop' of the CPU, coordinating activities between the ALU, registers, and I/O devices.