PCSX2 is a PlayStation 2 emulator for Windows and Linux, started by the same team that brought you PCSX.
The PCSX2 project attempts to allow PS2 code to be executed on your computer, thus meaning you can put a PS2 DVD or CD into your computers drive, and boot it up!
CPU: Dual Core Processor (x86-compatible)
RAM: 512 - 1024 MB
GPU: Pixel Shader 2.0 supporting card
AND: PS2 Bios, PS2 games...