teletype (n.)youdaoicibaDictYouDict[teletype 词源字典]
1904, trademark for a system of typewriters connected electronically, short for teletypewriter (1904), a form of telegraph in which the receiver prints messages like a typewriter, from tele- + typewriter.[teletype etymology, teletype origin, 英语词源]
TelexyoudaoicibaDictYouDict
1932, "a communication system of teletypewriters," from tel(etype) ex(change).