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4. Execute then Reset

STAGE: Execute

The instruction within the instruction register is carried out (executed) by the CPU. The part that executes instructions is called the 'execute unit'.

STAGE: Reset

Now that the CPU is executing an instruction, the Program Counter can now be reset to point to the next instruction.

 

This is the Fetch-Decode-Execute cycle that is present in every sequential processing computer.

To remind you how it works, have a look at this movie:

Fetch Decode Execute Cycle

 

 

Challenge see if you can find out one extra fact on this topic that we haven't already told you

Click on this link: Fetch Decode Execute Cycle

 

 

 

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