What are the reasons for process suspension, Operating System

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Q. What are the reasons for process suspension?

Reasons for process suspension

1.  Swapping

2.  Timing

3.  Interactive user request

4.  Parent process request

Swapping: OS needs to release required main memory to bring in a process which is ready to execute. 

Timing: Process can be suspended while waiting for the next time interval. 

Interactive user request: Process can be suspended for debugging purpose by user. 

Parent process request: To modify suspended process or to coordinate activity of several descendants.


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