IT Glossary

Binary Synchronous Communications (BSC)

Binary Synchronous Communications (BSC) is a half-duplex, character-oriented data communications protocol originated by IBM in 1964. It includes control characters and procedures for controlling the establishment of a valid connection and the transfer of data. Also called Bisync. Although still in use, it has largely been replaced by IBM’s more efficient protocol, Synchronous Data Link Control (SDLC), which is under Systems Network Architecture (SNA).

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