Virtual memory is a computer system technique which gives an application program the impression that it has contiguous working memory, while in fact it may be ph
ysically fragmented and may even overflow on to disk storage. Systems that use this technique make programming of large applications easier and use real physical memory (e.g. RAM) more efficiently than those without virtual memory.
Note that "virtual memory" is not just "using disk space to extend physical memory size".
ysically fragmented and may even overflow on to disk storage. Systems that use this technique make programming of large applications easier and use real physical memory (e.g. RAM) more efficiently than those without virtual memory.Note that "virtual memory" is not just "using disk space to extend physical memory size".
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