Answer / chinavenkannababu

Virtual memory is a computer system technique which gives
an application program the impression that it has
contiguous working memory, while in fact it is physically
fragmented and may even overflow on to disk storage.
Systems which use this technique make programming of large
applications easier and use real physical memory (e.g. RAM)
more efficiently than those without virtual memory

Answer / irshad

* virtual memory :-Space on a hard disk used to temporarily
store data and swap it in and out of RAM as needed.

*virtual memory:- created by using the hard disk to simulate
additional random-access memory; the addressable storage
space available to the user of a computer system in which
virtual addresses are mapped into real addresses)

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