I was born in 1984.
1987-1991 - Nintendo (NES)
1991-1996 - Super Nintendo
1996-2001 - Nintendo 64, Sony Playstation, Sega Dreamcast, and PC
2001-2008 - PC (also owned a Sony Playstation 2 and Gameboy Advance, but did not play them a third as much as the PC)
2008-2010 - PC and Xbox360
2010 on - Xbox 360 and PC