antagony:
What do you consider "using" them?  I think a lot of gamers wouldn't appreciate your opinion. 
 
The truth is I really did play games on a C64 when I was about 4.  They were mostly educational games, like Carmen Sandiego.  Some action games and stuff like that.
But if you want something that's more "real", I programmed my first QBASIC game in DOS 5.0 in 1988-1989 ... it was a weird version of Hangman, I think.  This was on an IBM PS/2 with a 386sx/15 or something like that.  
 
Those computers never crashed for me...
And yeah, those were the days...