The Topic: Virtual Machinesread more at AC
Most users have never heard the term virtual machine and when they do, visions of the "Lawnmower Man" or "The Matrix" flash before their eyes. That perception is only slightly off track. Virtual Machines(VM's) have little in common with Virtual Reality(VR). What they share with VR is that they simulate. Virtual is a simulation of reality, Virtual Machines are a simulation of a particular machine, in most cases the machine you will be simulating/emulating is a standard PC, however they can be used to simulate a host of other based on a wide array of target processor architectures.