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STARTING OUT WITH Python

Starting Out With Python

Authors:
Tony Gaddis
Exercise:
Multiple Choice
Chapter:
Introduction To Computers And Programming
Edition:
2
ISBN:
9780132576376
Question:
20

 

Question

In the _________ part of the fetch-decode-execute cycle, the CPU determines which operation it should perform.
a. fetch
b. decode
c. execute
d. immediately after the instruction is executed

Answer

The correct choice is b) decode

 

Explanation:

 

  • The instruction cycle is used for  fetch-decode-execute cycle in operating system by using CPU.
  • Once the instruction has been fetched, the CPU needs to be decoded and executed. 

 

So, In the b) decode part of the fetch-decode-execute cycle, the CPU determines which operation it should perform.

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