The Amiga is a family of personal computers sold by Commodore in the 1980s and 1990s. Based on the Motorola 68000 family of microprocessors, the machine has a custom chipset with graphics and sound capabilities that were unprecedented for the price, and a pre-emptive multitasking operating system called AmigaOS.

The best emulator of original Amigas and beyond (including PPC cards) is Frode Soldheim's FS-UAE. You can find all info and downloads at http://fs-uae.net/.