System Architecture

Question 1

What is a register?

Answer 1

very small and fast memory locations in the CPU.

Question 2

What is the Function of the Clock?

Answer 2

Manages the number of cycles carried out per second.
Synchronises the other components.

Question 3

What is the function of the Memory Address Register (MAR)?

Answer 3

Stores the address of the data to be fetched from,or the address where the data is to be stored.

Question 4

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

Answer 4

Temporarily holds data being transferred to or from the computer’s memory.

Question 5

What is the function of the Program Counter?

Answer 5

Stores the address of the next instruction to be fetched from memory and instructions the each FDE cycle.

Question 6

What is the function of the Accumulator?

Answer 6

Temporarily holds the results of ALU operations.

Question 7

What is the function of the Current Instruction Register (CIR)?

Answer 7

Holds the instruction that is currently being executed.

Question 8

What is an Embedded System?

Answer 8

A computer system built into a larger machine for a specific function.

Question 9

What is the Cache?

Answer 9

A high-speed data storage area that stores frequently accessed information for faster retrieval.