Wow, Scorched Earth, Zork... text adventure games. I don't think I ever actually beat one of those, but I played quite a few of them. First computer was a 486SX 25mHz, 8MB RAM, running DOS 6.0 (I think). I miss DOS sometimes...
Hey, whatever happened to Commander Keen?
EDIT: The most amazing thing I ever did with that computer was upgrade my 2400 baud modem to a 14.4, and play Doom over the TELEPHONE LINES with fellow-forumer DrewMG. Those are some of my fondest gaming moments right there. To this day, all he has to do is mention the level 4 debacle, and it just all comes back.