A developmental line-switched teletypewriter service: Data set and systems considerations

THE DECADE following the end of World War II saw an unprecedented growth in the number and extent of private-line teletypewriter systems; this was accompanied by technological developments aimed at efficient utilization of intercity lines, speed and security of message delivery, facility of message preparation, and flexibility of operation. The trend was toward increased automation and full employment of the switching techniques which were being developed in the communications industry.