Also K (1993) and A+ (1988) although the former only became public in 1998 or so, and the latter in 2003 - they were only available inside Morgan Stanley in the beginning IIRC.
I was working in K2 in 1999, and it was public then. This is back when it had the built in GUI and dependency graph. I remember the first time somebody showed it to me, and I didn't think it was very impressive. It took about 2-3 months of messing with it before I realized how very wrong I was.
