[AtlasBarfed]

How many amazing GUI libraries and codebases have been discarded over the years?

So much wasted human-centuries of software labor.

I think of things like the PowerBuilder datawindow widget, something that HTML+JS couldn't touch for 15 years until I started to see things like ExtJS and jquery. And it ran on 486s and pentiums.

As for the original question, practically all the superuseful UNIX utils that had to be performant on ancient MHz-class hardware is amazing stuff.