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What are demand- and pre-paging?
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Answer / raj kumar
demand-paging-the transfer of page from secondary memory to
primary memory at the moment of need.
pre-paging-the retrieval of a page other then demanded by a
page fault.the hope is that the additional page will be
needed in near future.
| Is This Answer Correct ? | 25 Yes | 5 No |
Answer / guest
With demand paging, a page is brought into memory only when
a location on that page is actually referenced during
execution. With pre-paging, pages other than the one
demanded by a page fault are brought in.
The selection of such pages is done based on common access
patterns, especially for secondary memory devices.
| Is This Answer Correct ? | 22 Yes | 11 No |
Answer / g.bhaskaran
With demand paging a page is brought into memory only when a
location on that page is actually referenced during
execution. With prepaging other then the one demanded by a
page fault is actually reference during execution.
| Is This Answer Correct ? | 12 Yes | 5 No |
Answer / terry xaviour
demand paging is a process that accesses its working set by
page faults every time it is restarted.
pre-paging is a technique whereby the operating system in a
paging virtual memory multitasking environment loads all
pages of a processors working set into memory before the
process is restarted.
| Is This Answer Correct ? | 9 Yes | 2 No |
Explain the concept of the multi-processor systems or parallel systems?
unix system is a)multi processing b)multi processing ,multiuser c)multi processing ,multiuser,multitasking d)multiuser,multitasking
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