One of the companies he started, Information International, played a significant role in the history of computer graphics: https://ohiostate.pressbooks.pub/graphicshistory/chapter/6-3...
An interview with Ed Fredkin during the Triple-I Reunion October 14th, 2014: https://www.youtube.com/playlist?list=PLZKOq5_Vcp4GGdZHCzKzr...