The teleprinter, also called a teletypewriter, is a typewriter-printer that sends messages over telegraph or other data communication lines to a similar receiving printer, which automatically prints the message. The transmitter inputs the message on a...

Telex is an international message-transfer service for subscribers using teleprinters. A subscriber attaches its Telex-compatible teleprinter to a Telex line, then dials (much like atelephone call) the fellow subscriber to whom the message is being...

A teleprinter (teletypewriter, Teletype or TTY for TeleTYpe/TeleTYpewriter) is a now largely obsolete electro-mechanical typewriter which can be used to communicate typed messages from point to point through a simple electrical communications channel,...