Virtual memory

Question

Explain virtual memory? How we can enhance or reduce the virtual memory?

Answer 1

Virtual memory is a part of operating system wherein whenever ram have no space to execute any process than operating system employ some part of hard disk like a ram. Those parts of memory called as virtual memory since this is virtually created by operating system whenever required.

This memory created through operating system in big companies wherein more process executes and ram hold no space since they contain more process already. Most of the operating systems contain this concept.