WinUAE

WinUAE is a mostly complete software emulation of the hardware of the Commodore Amiga 500/1000/2000.
A Commodore Amiga, for those who don't know, is a 16/32 bit computer system based on the Motorola 680x0 CPU and a few specially designed custom chips that provide very good graphics and sound capabilities. Its first incarnation, the A1000, appeared in 1985, followed by the highly successful A500 and A2000 models.