I found this neat video circa 1994 [UPDATE]1997-8[/UPDATE] showcasing BeOS (a revolutionary OS that disappeared a short time later; their last hope would have been to be purchased by Apple, however NeXT won… long story). This video is a promotional video–and what I find amazing is what they could do with on a dual Pentium 2 266MHz!
…And Part 2.
[UPDATE-12:20p] Changed year [/UPDATE]