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Authors:
Linda Null ,julia Lobur
Chapter:
Introduction
Exercise:
Review Of Essential Terms And Concepts
Question:26 | ISBN:9780763704445 | Edition: 3

Question

How does the fetch-decode-execute cycle work?

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Answer

The main advantage of fetch-decode-execute cycle for execute the programs through CPU. It is instruction cycle process of CPU.

 

The fetch-decode-execute cycle is used to work divided three subparts. Those are:

  • Fetch        :  "Fetch(get) the instructions from the client".
  • Decode     :  "Decode(work out) the given instructions for the CPU".
  • Execute    :  " Execute (process) the instructions from the CPU".

For example:

  • Any executable program code is get from the secondary storage into the main memory is called 'Fetch'.
  • Work out given instructions and set the program has been stored first in the memory location through CPU is called "Decode".
  • Process begins and running the program now is called "Execute".
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