"The TurboGrafx-16 (in full, the TurboGrafx-16 Entertainment SuperSystem), known in Japan as the PC Engine, is a video game console developed by Hudson Soft and NEC, released in Japan on October 30, 1987, and in North America on August 29, 1989.

The TurboGrafx-16 has an 8-bit CPU and a dual 16-bit GPU; furthermore, it is capable of displaying 482 colors at once out of 512.

Although there was no full-scale PAL release of the system, imported PC Engine consoles were largely available in France and Benelux through major retailers thanks to the unlicensed importer Sodipeng (Société de Distribution de la PC Engine, a subsidiary of Guillemot Corporation).

In the United Kingdom, Telegames released a slightly altered version of the US model simply as the Turbografx around 1990 in extremely limited quantities.
With dimensions of 14 cm x 14 cm x 3.8 cm (5.5in x 5.5in x 1.5in), the NEC PC Engine holds the record for the world's smallest game console ever made. (Guinness World Records Gamer's Edition (2008))"

• HuCard
  • HuCard -Standard HuCards designed to run on any PC Engine console.
  • SuperGrafx -HuCard games designed solely for the PC Engine SuperGrafx
• CD-ROM
  • CD-ROM² -Discs designed for any version of the CD-ROM² System add-on.
  • Super CD-ROM² -Discs designed for the Super CD-ROM² System or CD-ROM² System with Super System Card.
  • Arcade CD-ROM² -Discs designed for the Super CD-ROM² System with Arcade Card Duo or CD-ROM² System with Arcade Card Pro.

Source: Wikipedia, "TurboGrafx-16", available under the CC-BY-SA License.