Fetch, computer!!

There are only two situations where you would tell computer to fetch:

The first would be if you have a dog named computer and you told it to get the ball.
The other would be if you meant the first step in the machine cycle, which is also our topic for this lesson. 

A machine cycle is cycle, also called a processor cycle or an instruction cycle, is the basic operation performed by a central processing unit (CPU). A CPU is the main logic unit of a computer.

The cycle consists of the following:

• Fetch (as mentioned earlier) is the retrieving of an instruction from the memory as well as it is command you tell your dog.
• Decode is the translation of the retrieved instruction into a series of computer commands.
• Execute is the execution of the computer commands.
• Store is the writing of the results back in memory.

Here is a visual representation of the cycle: