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IBM 3767
IBM 3767 Communication Terminal is a serial printer terminal that employed wire matrix print-head technology and, for the first time, the Synchronous Data Link Control (SDLC) communications protocol set under IBM's Systems Network Architecture(SNA). It was introduced in 1974 and was used widely during the late 1970s to 1990s, for attachment to IBM System/360 and System/370 mainframe computers and IBM System/7 as a 2741 terminal.
== Needs for more efficient computer terminals ==
During the late 1960 and 1970s, the computing environment expanded beyond the large computer rooms based on card input/output and started to allow data input and output terminals from remote locations. For such purposes, printer terminals such as IBM 2741 printer, using the traditional asynchronous serial communication (start-stop signaling), and display terminals such as IBM 2260 and IBM 3270, using the new communications protocol set (Binary Synchronous Communications or BSC), became available.
There were needs to use a new more efficient communications protocol set and to make available a more efficient and reliable remote printer and display terminals. To satisfy such needs, IBM 3767 serial printer and IBM 3770 communications system (including a line printer) became available as part of the "Advanced Function in Communications" announcement which included the new System Network Architecture (SNA) and Synchronous Data Link Control (SDLC) communications protocol set, followed by another announcement in July, 1975, which included IBM 3760 Data Entry Station and the new models of IBM 3270 display stations, and IBM 3790 communication system.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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