The ZX spectrum was also the first time I ever coded anything. I was too young to make anything as advanced as my dad could but I made a few simple programs.
That was it as far as gaming was concerned until my older brother got a PC. He saved up his own money from doing a paper round to buy it (which took years I think). I don't know what the first game I played on it was but the first I remember is the shareware version of Raptor: Call of the Shadows. Not only was this on of my first PC games, it was also my first introduction to hacking. You see a PC mag at the time came with instructions of how to hack it so that you could get access to the best shareware weapon right from the start. I can't remember the details now but I remember you had to copy down a sequence of number and letters from the magazine. It was probably a hex change to the save game, or possibly even the binary (though that's more unlikely).
The other thing I remember was after my dad had bought a PC for him and all the family to use (I think he got jealous of my brother having a modern PC :D). When I was playing C&C on this new PC my brother came in and told me he had just got Red Alert and did I want to see him play it on his computer? I was more interested in carrying on playing C&C at the time but curiosity soon got the best of me and I went to his room to watch. I think I eventually played Red Alert far more than I ever played C&C.
Well there you go; thems my earliest gaming memories. Do you have anecdotes from your early gaming years?