What is Virtual Memory on the Mac?
You may have heard the term virtual memory used in the context of your Mac, but what exactly does it do and why is it necessary? There are many mechanisms used by Mac OS X to manage the system resources of your computer, and virtual memory is just one of those techniques.
This article provides a brief overview of virtual memory, and shows how you can find out how much your Mac is using, and even what you can do to help your Mac attain the best performance possible.