In Memoriam: Donald Bitzer, 1934–2024
Bitzer was born January 1, 1934, and was an American electrical engineer and computer scientist. He was co-inventor of the flat-panel plasma display and the "father of PLATO,” the world’s earliest time-shared, computer-based education system and home to one of the world’s most pioneering online communities.
Bitzer studied electrical engineering at the University of Illinois at Urbana-Champaign (UIUC), obtaining a PhD in 1960. Following graduation, he joined the UIUC faculty, where he learned of efforts to bring lessons to students over a closed-circuit television network. While a committee of engineers, psychologists, and educators were unable to agree on a single solution at the time, Bitzer wrote up a proposal within a week, got it approved, and immediately started developing his PLATO system for the university’s groundbreaking ILLIAC I computer—the first electronic digital stored program computer built by a university. (PLATO stands for Programmed Logic for Automated Teaching Operations).
To expand multimedia for courses, later PLATO terminals incorporated microfilm projector that could combine detailed images with computer text on the screen, and some used an attached magnetic audio disk for language and music instruction. To make things easier on the eyes for students sitting in front of computer terminals for many hours at a time, in 1964 Bitzer, with colleague Gene Slottow and graduate student Robert Wilson, invented the flat panel display: plasma screens do not flicker and their clever design also saved memory in the computer by having the display itself store data.
