"Have you ever wished you had another computer handy? Maybe you
want to try a new operating system out. Maybe you want to test
something experimental without potentially breaking your own
system. Maybe you need to run some software that only runs in a
different operating system. Mandriva Linux 2007 Spring comes with a
range of virtualization options that can help.
"Virtualization can often be the best way to handle these
situations. To put it simply, virtualization systems simulate a
complete running PC in software. You can install an operating
system to the virtual machine without it being aware it is really
just running inside a program on your desktop..."