Teleprinter
DEVICE FOR TRANSMITTING MESSAGES IN WRITTEN FORM BY ELECTRICAL SIGNALS
Teletypewriter; Teletypes; Teletype Message; Teletype machine; KSR terminal; Teletyp; Teletype interface; Teletype mode; Teletypesetter; Teleletter; Tele-type; Teletype; Telephone typewriter; Teletype printer; TeleTypeSetter; Tele-typewriter
A teleprinter (teletypewriter, teletype or TTY) is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations. Initially they were used in telegraphy, which developed in the late 1830s and 1840s as the first use of electrical engineering, though teleprinters were not used for telegraphy until 1887 at the earliest.