Understanding Computer Architecture Concepts

What is the role of the Accumulator in a processor?

• It stores the address of data for READ or WRITE operations.

• It stores the result of arithmetic and logical operations.

• It controls the memory, processor, and input-output devices.

• It contains the location of the instruction to be executed next.

Which component of the CPU is responsible for performing arithmetic and logic operations?

• Control Unit (CU)

• Memory Data Register (MDR)

• Arithmetic and Logic Unit (ALU)

• Program Counter (PC)

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

• It stores the current instruction being executed.

• It controls the memory, processor, and input-output devices.

• It temporarily holds data and instructions for the CPU.

• It transfers data and signals between components.

What does the Program Counter (PC) contain?

• The result of arithmetic operations.

• The address of data for READ or WRITE operations.

• The location of the instruction to be executed next.

• The current instruction being executed.

Which of the following is a register that stores the address of data for READ or WRITE operations?

• Memory Address Register (MAR)

• Current Instruction Register (CIR)

• Accumulator

• Cache

What is the purpose of the Memory Data Register (MDR)?

• It stores the address of data for READ or WRITE operations.

• It stores the data for READ or WRITE operations.

• It contains the current instruction being executed.

• It temporarily holds frequently used data and instructions.

What is the fetch-decode-execute cycle?

• A process of storing data in the cache.

• A cycle of fetching, decoding, and executing instructions by the CPU.

• A method of transferring data between the CPU and memory.

• A technique for benchmarking computer performance.

Which of the following is an example of an input device?

• Monitor

• Printer

• Keyboard

• Speaker

What is the role of buses in a computer system?

• They store the result of arithmetic operations.

• They transfer data and signals between components.

• They control the memory and input-output devices.

• They contain the current instruction being executed.

What is the function of cache memory in a CPU?

• It stores the address of data for READ or WRITE operations.

• It temporarily holds data and instructions that the CPU is likely to use frequently.

• It controls the memory, processor, and input-output devices.

• It contains the location of the instruction to be executed next.