1.1.1 Structure & function of the processor - Filip

Question 1

what’s the purpose of the data bus ?

Answer 1

The purpose of the data bus is to transfer the data of instructions between RAM and the CPU

Question 2

what’s the purpose of the MDR ?

Answer 2

Stores the data of the instruction currently being executed

Question 3

what’s the purpose of the MAR ?

Answer 3

To hold the address of the instruction currently being executed so that the data bus can retrive the data

Question 4

what’s the purpose of the CIR ?

Answer 4

holds the current instruction being executed divided into opcode and operand

Question 5

what’s the purpose of the ALU ?

Answer 5

To solve mathematic problems presented to it

Question 6

what’s the purpose of the Accumulator ?

Answer 6

holds the results of the ALU

Question 7

what’s the purpose of Address bus ?

Answer 7

used to transmit the memory addresses of data between the MAR and Ram

Question 8

what’s the purpose of the Control bus ?

Answer 8

bi-directional bus used to transmit control signals

Question 9

what’s the purpose of the Program counter ?

Answer 9

holds he address of the next instruction to be executed

Question 10

what’s the purpose of the FDE cycle ?

Answer 10

FDE cycle is used to process and execute instructions

Question 11

What