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How many modes does a CPU have?

How many modes does a CPU have?

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A. 4
B. 3
C. 2
D. 1

This question is part of A+ Operating Systems Chapter 2 Test
Asked by Sandsk, Last updated: Apr 21, 2020

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3 Answers

Daniel Collingwood

defense enthusiast, geopolitically and geostrategically sound

Daniel Collingwood, SSEE, high school, btech (cse), New York

Answered Jan 03, 2018

(C) 2

A CPU has 2 modes

1> Privileged mode

In this mode, you can access all the areas of memory and make changes in any register. So basically you have unrestricted access to Privileged mode.

2> User mode

In this mode, you get to access the memory in a limited manner and also you get to make no changes in the memory registers.

 

John Adney

John Adney

Answered May 22, 2017

What are the three possible mode to which the cpu operate?
 

John Smith

John Smith

Answered Jan 17, 2017

3
 

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