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number of process in system

number of threads in a program..

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Q: What is Degree of Multiprogramming?
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Which scheduler controls the degree of multiprogramming?

Long Term Scheduler


What is Trashing in operating system?

Trashing means excessive page input output in swapping. Which reduces the degree of multiprogramming.


Is windows operating system multiprogramming or multitasking?

multiprogramming


When was THE multiprogramming system created?

THE multiprogramming system was created in 1968.


Discuss the effect of heavily multiprogramming on demand page swapping?

Mutiprogramming helps increase the CPU utilization to some extent, but if the degree of Multiprogramming is increased above a certain limit (i.e Heavy Multiprogramming) it can lead to Thrashing and thus decrease the CPU utilization drastically.Heavy Multiprogramming may lead to Thrashing, a condition where a system is spending more time Page Faulting (i.e swapping pages in and out of memory) rather than executing them, this leads to deterioration of system performance.


Is multitasking a logical extension of multiprogramming?

timesharing is logical extention of multiprogramming.


Is it possible to do multiprogramming with only one partition of the memory?

is it possible to do multiprogramming with only one partition


What is the main advantage of multiprogramming?

Multiprogramming increases CPU utilization by organizing jobs so that the CPU always has a job to execute.


What is the principal disadvantge of too much multiprogramming?

The principal disadvantge of too much multiprogramming is the overhead of excesssive context-switching. If the context-switch rate is too high, the overhead can actually overwhelm the benefit of multiprogramming.


Why spooling is necessary for batch multiprogramming?

ogobs


What is symmetric multiprogramming?

Where it has to do with symmetrical shapes and there equations.


What are advantages of multiprogramming?

Multiprogramming makes effifcient use of the CPU by overlapping the demands for the CPU and its I/O devices from various users. It attempts to increase CPU utilization by always having something for the CPU to execute.