The PC Engine (PCE) was a 16-bit system released jointly by NEC and Hudson Soft in Japan on October 30, 1987 and in the US on August 29, 1989. It was retailed for $399.99. It had a Hudson Soft HuC6280 8-bit CPU at 7.16 MHz and 1.79 MHz with 8KB of RAM and 64KB of VRAM. The CPU was teamed up with a 16-bit graphics processor and 16-bit video color encoder chip, both built by Hudson Soft. When it came time to seek other potential markets, the two companies eventually caved to a limited American release in 1989 under a completely different model and name: the TurboGrafx-16. The European versions varied throughout the countries, being the western version in Spain and United Kingdom and Japanese models in Benelux regions.
Full details http://wiibrew.org/wiki/WiiEngine