The Difference Between a Virtual Machine and an Emulator

A virtual machine is a facsimile of another machine that doesn't exist in the real world. Emulators are typically where you're going and trying to emulate a machine, a specific piece of hardware like a Nintendo or something. Stackless Python gives some extensions to Python that make it more multi-core and multi-processor friendly. It's used by EVE Online which boasts the largest user-based, largest single online server,. user base of any multi-user environment.