Good memories, I think I've got to know it by 1998 when last of 1.x kernel versions were out. My father got me some OS/2 Hobbes CD from Walnut Creek and there were a small Slackware demo like if I remember when. By that time it was common multi booting system to try out OSes, and so screwing up whole HDs ;) - I never got to play much with until Slackware 4 and 7 when I had another computer. I've came to learn how to compile kernel and apps, X and some troubleshooting to install applications that didn't fit well (VMTools 2!) Still believe Slackware is awesome to study and learn Linux outside most common flavours.