Core War Java VM Platform J2SE J2EE J2ME Speed Classic Hotspot For J2ME KVM(Kilobyte VM) GVM(Game VM) MAP(Mobile Application S/W plug-in) BREW Redbook compliant VM OCODE OS/2 POPLOG Portable Scheme Interpreter Portable Standard Lisp Parallel Virtual Machine Sequential Parlog Machine SNOBOL Implementation Language SODA Smalltalk