Lol, to all of you guys I'm gonna seem like a youngster!
Mine was a desktop dell running Windows XP. It wasn't mine, it was my dad's (he is a writer), and all he really used it for was his hotmail and Microsoft Word. We had an older version of Word though, developed for Win98. Sometimes, my dad would let me type gibberish of the keyboards, and change all the fonts and sizes and stuff. This was the age of 'Cyberchase', the kids show of PBS kids. I watched that show every day at 5, and loved it. That's where I first heard about hackers, the bad guy in the show was called hacker, and I asked my dad what it meant. So anyway, one day I changed the font to Wingdings, made it 72pt., and then colored it pink and I though I was the most ultimate computer professional ever. Man, I loved that computer. We still have it, but it's disconnected and under my desk. I'm thinking of taking it apart and giving it some new RAM and new HDD, and running Backtrack on it.