My first PC was a 386. I don't remember the clock speeds or anything, but I can remember the 40MB HDD. It was immense.
After that we got a 486.
Then the Pentium 1 was at the order of the day, at 333MHz with 64MB RAM (two 32MB sticks). This PC was insane. Sink Sub Pro anyone?
After that we got a Pentium 3, which basically sucked.
Then I got a Celeron 2.1GHz with 128MB RAM later upgraded to 256MB.
It sucked, so I got a Pentium 4 3.2GHz (awesome machine). This machine had a 40GB HDD, and people were all like "holy crap, you're never going to fill 40GB in your life". It had 512MB RAM and a GeForce FX5200 AGP card (later swapped for a PCI version).
That machine packed up and stopped functioning after a shortish while, so I got another one, this time the P4 3.0GHz with Hyper Threading. This PC I used to game on with a 7600GT for a long time, only getting more RAM (up to 2GB) and a GeForce 220GT graphics card until it became too slow.
Then I got my current PC, Core 2 Quad Q8400, 3GB RAM and a GTX460 1GB. Next upgrade will probably be my last and I wish it to be a Bulldozer rig
EDIT: I do remember these old games though.
Ski was played until waaaay past the little monster,
Lemmings was beaten and beaten again and I loved it. More games were Pacman, Tetris and several text-based games that made very little sense for me, but I kept typing commands and looked in awe at the screen that replied. Oh, and Age of Empires 2: Gold Edition was played on the P1. Multiplayer games, super-*** framerates and all-in-all fun and more fun. Need for Speed 2 SE also rings a bell. FZR2000 cheat car anyone? On the Pacific Spirit race track? :3