I think the line of descent is Cedar -> Oberon -> Acme.
My Oberon usage was quite a while ago (really liked the system, although it was a bit impractical). The big difference being the object-/module-oriented nature of it, as compared to acme's Unix text piping.
Oberon's System 3 is a pretty decent example of transitioning from a text-based environment to a richer GUI, by the way.
My Oberon usage was quite a while ago (really liked the system, although it was a bit impractical). The big difference being the object-/module-oriented nature of it, as compared to acme's Unix text piping.
Oberon's System 3 is a pretty decent example of transitioning from a text-based environment to a richer GUI, by the way.