How Does The Fetch Execute Cycle - AQA GCSE Computer Science Work?

The Fetch Execute Cycle is how a computer brain works step by step to do tasks, like solving a math problem or playing a game.

Imagine you have a list of instructions, like a recipe for making a sandwich. The computer has a special part called the central processing unit (CPU), think of it as the chef in the kitchen. This chef follows the recipe one instruction at a time.

1. Fetch: The CPU looks at the next instruction on the list, like reading the first step of the sandwich recipe: “Take out two slices of bread.”

2. Execute: Then, it does what the instruction says, the chef takes out two slices of bread.

This cycle repeats over and over until all instructions are done, just like how you follow each step in your sandwich recipe to make a perfect sandwich.

Every time the CPU finishes one instruction, it moves on to the next, just like moving from one step to the next in a fun game or a dance routine. This is how the computer brain keeps working smoothly and efficiently!