I think my roommates installed it on a pc in college so we are talking pre 95 but I had no idea what it was but it was in the days when they were screwing around with os/2 before win95 came out. I did not really use it until after 2000 though and that was when working in a place that was an irix shop so had the general nix experience going as I was starting to use linux. freebsd at about the same time.