Cyber1.org is a group of people dedicated to the preservation of the world's first computer-based community, PLATO.

PLATO is a computer-based educational system created at the University of Illinois Control Systems Laboratory. The idea was first discussed at the University in 1959, in a long series of meetings led by Chalmers Sherwin. At these meetings it was concluded that computer-based education should not be pursued. However, the director at the time, Daniel Alpert, got together with Donald Bitzer to see if Don could quickly come up with a prototype that could serve as proof-of-concept. This prototype, running on an Illiac-I, became PLATO. The project was subsequently funded in 1960 by government money from the Joint Services Program. The lab grew and became the Computer-based Education Research Laboratory (CERL). PLATO eventually spawned a variety of commercial ventures, starting in 1975 with Control Data Corporation (CDC), a mainframe computer manufacturer founded in 1957.