Just about everything about the interface of your computer comes from one place. And very few people really know about that.
How you use your computer today, comes from something created over thirty years ago: Graphical interface, Bit mapping, mouse, Icons, application sensitive documents, networking, pull down menus, verb noun command structures, PC multi-tasking and the desk top analogy - all comes from the Xerox Star 8010, and its progenitor the Xerox Altos.
I have to laugh sometimes, when Apple or MS or IBM take credit for stuff they didn't invent. We are all using STARs now. That amazes me. It takes a geek to really appreciate this.
I want to make a toast. To The Xerox PARC researchers. "It took a while, but your dream came true. Thank You."