The Fetch-Decode-Execute Cycle Flashcards
1
Q
What is the Fetch-Decode-Execute cycle?
A
Is a basic method used by the CPU to carry out a single instruction contained in a computer program
2
Q
What registers are involved with this cycle
A
Memory Data Register Memory Address Register Program Counter Accumulator Instructions Register
3
Q
What is the Fetch part of the cycle designed to do
A
It is responsible for getting an instruction or data from the main memory into the CPU
4
Q
What is the Decode part of the cycle designed to do
A
The control unit reads the instruction register and makes sure that it is an instruction that the CPU can carry out
5
Q
What is the Execute part of the cycle designed to do
A
This is where is carries out the instruction that has been decoded
