the Video Game Consoles Generations:
1st: Magnavox Odyssey (1972), Coleco Telstar (1976)
1977: Video Game Crash
2nd: Fairchild Channel F (1976), Atari 2600 (1977), Magnavox Odyssey II (1978) Mattel Intellivision (1979), Atari 5200 (1982), GCE Vectrex (1982) Emerson Arcadia 2001 (1982) Coleco ColecoVision (1982), Sega SG-1000 (1983)
1983: Video Game Crash
3rd: Nintendo NES/Famicom (1983), Sega Master System (1985), Atari 7800 (1986)
4th: NEC TurboGrafx-16 (1987), Sega Mega Drive/Genesis (1988), Nintendo Super Nes/Super Famicom (1990), SNK Neo Geo (1990), Nintendo Game Boy (1989), Atari Lynx (1989), Sega Game Gear (1990)
5th: Panasonic 3DO (1993), Atari Jaguar (1993), Commodore Amiga CD32 (1993), Sega Saturn (1994), Sony Playstation (1994), Nintendo 64 (1996), Nintendo Game Boy Color (1998), Tiger Electronics Game.com (1997)
6th: Sega Dreamcast (1998), Sony Playstation II (2000), Nintendo GameCube (2001), Microsoft Xbox (2001), Neo Geo Pocket Color (1999), Bandai WonderSwan Color (2000), Nintendo Game Boy Advance (2001), Game Park GP32 (2001)
7th: Microsoft Xbox 360 (2005), Sony Playstation III (2006), Nintendo Wii (2006), Nintendo DS (2004), Playstation Portable (2004), Tiger Telematics Gizmondo (2005), Game Park GP2X (2005)