Of course Evanston was dry back in those days, so I think you also have to rule out all the free drinks that FloridAlum was likely owed as an alternative explanation for a "virtual experience."
You do know though that we did have Vogelback back then which housed a computer the size of a school bus with probably the same power as on your laptop. I came across this tidbit about the place as sourced from The Evanston Forum:
"I loved that story about how it was going to have grass on the roof so the USSRcouldn't bomb it. The cyber was cooled by lakewater and the place smelled like the antique vacuum tube radios I took apart as a kid. There were chess program trophies in glass cases in the entrance.*Journals of the ACM* on the bookshelf, which I read..!"
http://www.topix.com/forum/city/evanston-il/T1AO6J8PJ7MKPKF56