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What is a pure demand paging?
When starting implementation of a process with no pages in memory, the operating system sets the instruction pointer to the first instruction of the process, which is on a non-memory resident page, the process immediately faults for the page. After this page is brought into memory, the process continues to implement, faulting as necessary until every page that it requires is in memory. At that point, it can implement with no more faults. This schema is pure demand paging.
i need to complete project on lan architceture RAIDs etc
How Virtual memory is implemented Virtual memory can be implemented along with Segmentation and Paging
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
what is multiprogramming
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