Digital communications technology (Tutorial)

The Datran System, a digital switched network, proposes to integrate electronic switching technology from the computer industry and digital technology of command and control systems with technology of microwave and optical transmission in both terrestrial and outer space. The selection of the proper elements from each of these technologies has been evolving over the last three years. As new technological opportunities appear they are evaluated and merged into the system if economically sound. The best interests of the user will be served by the integration of available technologies from a variety of sources.