Harrison Smith / Washington Post:

Donald Bitzer, plasma screen co-inventor and the father of PLATO computer system, considered a precursor to messaging apps and more, died on December 10 at 90  —  He helped shape cyberculture as the father of PLATO, a computer-based educational network that sparked the development of plasma screens and digital messaging.

Harrison Smith / Washington Post:

Donald Bitzer, plasma screen co-inventor and the father of PLATO computer system, considered a precursor to messaging apps and more, died on December 10 at 90  —  He helped shape cyberculture as the father of PLATO, a computer-based educational network that sparked the development of plasma screens and digital messaging.

Source: TechMeme
Source Link: http://www.techmeme.com/241215/p4#a241215p4