Operating Systems Virtual Memory

If a system has 128 MB RAM and 1 GB hard Disk, and a process decides to use its fully allotted Virtual Memory 2^32 - 2GB = 2 GB, How is it practically possible?

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erdhavalpatel

  • Jun 26th, 2010
 

The basic idea behind the VM is that the combined size of the program, data and stack may exceed the amount of physical memory avaliable for it.  The operating system keeps those parts of the program currently in use in main memory and rest on disk. Thanks.

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