Describes systems which use wireless terminals to communicate with mainframe computers or minicomputers via radio band, discusses their limitations, and gives examples of networks using such systems. The use of communications satellites to increase their range and the possibility of using light beams to transmit data are also discussed. (MBR)

Outlines the development of Plato, a unified computer system linking terminals to a central educational network; critically reviews Plato's new Homelink system which provides access to 273 games and lessons; and discusses its present capabilities and possible future improvements to make Homelink attractive to home users interested in educational…