Fetch Decode Execute

Question 1

Fetch

Answer 1

The program counter will hold the address of the first instruction.
The address in MAR will go on the address bus will go to main memory
The control bus will have a read signal.
The contents of memory Location of 0001 will go on the date buss to the MDR.
The instructions in MDR will go to the CIR.

Question 2

Decode

Answer 2

The instructions is decoded so we know what it wants us to do

Question 3

Execute

Answer 3

When the instruction is carried out