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Demand paging gives that pages could only be brought into memory if the running process acts them. This is usually referred to as lazy evaluation as only those pages operated by the process are swapped from secondary storage to main memory. Contrast this to accurate swapping, where all memory for a process is changed from secondary storage to main memory in the mean while the process startup.
Usually, to gain this process a page table implementation is needed. The page table maps logical storage to physical storage. The page table uses a bitwise operator to check if a page is invalid or valid. A valid page is one that currently has in main memory. An invalid page is one that currently has in secondary storage. When a process tries to accept a page, the following steps are usually followed:
Internal file structure All disk I/O is performed in units of single block, and all blocks are the similar size. It is unlikely that the physical record size will exactly match
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Q. Consider the two-dimensional array A: int A[][] = new int[100][100]; Whereas A [0][0] is at location 200 in a paged memory system with pages of size 200. A little process
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