NEC
From HwB
NEC=Nippon Electric Company
- 1987: PC Engine
- 1989: TurboGrafx-16 (PC Engine released in North America)
- 1990: Turbografx (TurboGrafx-16 released in UK & Europe)
- 1990: TurboExpress (Portable TurboGrafx-16. Released in Japan as PC Engine GT)
TTi=Turbo Technologies Incorporated
- 1992: TurboDuo (TurboGrafx-16 with TurboGrafx-CD)