Well I can't top these guys, but-
Atari 2600 (I still have one, and it still works.)
Atari 400, 800
TI-99 4/A
Apple II, IIe, IIc
IBM PS/2 Model 386 (which ironically contained a 286 processor
)
... And on into 'modern' PC's.
To relate to another OT thread about getting kids interested in IT, it was my massive waste of time playing games on the 2600 that got me into computing, not having a complex yet archaic system dropped in my lap with expectations that I would master it easily and enjoyably. Ah, the good ole days!