JPC is a Java based x86 emulator. It is emulating a regular ol’ x86 based PC. The demo on their site shows it running unmodified DOS. This just goes to show you what you can do with DOS. You can head over to the Project page and run some games under the emulator within their page. They have 7 games that you can play right from within your browser. Its pretty amazing. Just how long until you can run Windows Vista in this thing (I don’t see that happing any time soon), but how cool would that be.