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What is difference between multiprogramming and …

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What is difference between multiprogramming and multitasking?
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Sia ? 4 years, 3 months ago

Sr.no  Multiprogramming  Multi-tasking 
1.  Both of these concepts are for single CPU.  Both of these concepts are for single CPU. 
2. Concept of Context Switching is used. Concept of Context Switching and Time Sharing is used.
3. In multiprogrammed system, the operating system simply switches to, and executes, another job when current job needs to wait.  The processor is typically used in time sharing mode. Switching happens when either allowed time expires or where there other reason for current process needs to wait (example process needs to do IO).
4. Multi-programming increases CPU utilization by organising jobs . In multi-tasking also increases CPU utilization, it also increases responsiveness.
5. The idea is to reduce the CPU idle time for as long as possible. The idea is to further extend the CPU Utilization concept by increasing responsiveness Time Sharing.
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