Chapter Exam

Chapter 3: Computer Organization — Online MCQ Test

Q: Which component acts as the 'brain' of the computer, responsible for executing instructions?

Answer: B. Microprocessor — The microprocessor is the central unit that performs arithmetic, logic, and control operations.

Q: Which of the following is considered 'Volatile' memory?

Answer: C. RAM — RAM is volatile memory because it loses its data when the power supply is switched off.

Q: If a computer has a 32-bit architecture, what does this imply about the system?

Answer: B. It can address 2^32 memory locations — The word size determines the maximum amount of memory the CPU can directly address, which is 2^32 bytes for a 32-bit system.

COMPUTER SCIENCE · CLASS 11th · Tamil Nadu State Board

Practice Chapter 3: Computer Organization with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 11th COMPUTER SCIENCE. This chapter covers: This chapter covers microprocessor architectures memory organization and peripheral interconnections. Students explore instruction cycles RAM ROM cache memory types system buses an.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 3: Computer Organization — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 11th COMPUTER SCIENCE — Chapter 3: Computer Organization, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which component acts as the 'brain' of the computer, responsible for executing instructions?

A. RAM
B. Microprocessor ✓
C. Hard Disk
D. Motherboard

Answer: B. Microprocessor
The microprocessor is the central unit that performs arithmetic, logic, and control operations.

Which of the following is considered 'Volatile' memory?

A. ROM
B. PROM
C. RAM ✓
D. EEPROM

Answer: C. RAM
RAM is volatile memory because it loses its data when the power supply is switched off.

What is the primary function of the Control Unit (CU) in a microprocessor?

A. To store data permanently
B. To perform arithmetic operations
C. To direct and coordinate the operation of other parts of the computer ✓
D. To act as an interface for input devices

Answer: C. To direct and coordinate the operation of other parts of the computer
The Control Unit acts as the nervous system of the computer, coordinating all tasks and instruction execution.

If a computer has a 32-bit architecture, what does this imply about the system?

A. It can process 32 bytes of data at once
B. It can address 2^32 memory locations ✓
C. It has 32 physical memory slots
D. It can run only 32 programs at a time

Answer: B. It can address 2^32 memory locations
The word size determines the maximum amount of memory the CPU can directly address, which is 2^32 bytes for a 32-bit system.

Which of the following accurately compares registers to main memory?

A. Registers are cheaper, slower, and located outside the CPU
B. Registers are smaller, faster, and located inside the CPU ✓
C. Registers are larger, faster, and located on the motherboard
D. Registers and main memory have the same architecture and speed

Answer: B. Registers are smaller, faster, and located inside the CPU
Registers are the fastest storage locations in a computer, located directly within the CPU, but they have very limited capacity compared to main memory.