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what is multi-programming?

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what is multi-programming?
asked May 27, 2011 by albertina Geek (15,670 points)

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Multiprogramming is the technique of running several  programs at a time using time sharing.

 It allows a computer  to do several things at the same time. Multiprogramming  creates logical parallelism.

The concept of   multiprogramming is that the operating system keeps several jobs in memory simultaneously. The operating system selects a job from the job pool and starts executing a job, when that job needs to wait for any i/o operations the CPU is switched to another job. So the main idea here is that the CPU is never idle.
answered May 27, 2011 by sagar Expert (12,340 points)
what is fixed partition multiprogramming ?

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