Pure demand paging
Explain the term pure demand paging?
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In start of execution of a process having no pages within the memory, operating system sets the instruction pointer at the first instruction of the process, which is on a non-memory resident page; process instantly faults for the required page. After this page is brought within the memory, process continues its execution, faulting as essential until each page which it requires is in the memory. At that particular point, it may execute having no more page faults. This schema is full demand paging.
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