Binary synchronous communication
Binary Synchronous Communication (BSC) is a term from computer science and describes a specific network protocol .
The binary synchronous communications , or shortly BSC , is a synchronous, character-oriented connection protocol of IBM offers its services to the data link layer handles. The procedure is also called BISYNC and uses a defined sequence of control characters for the synchronous transmission of binary coded data between stations of a communication system.
The data are combined in blocks (character or byte), provided with control characters and test characters and transmitted in half-duplex mode. Operation takes place when a control station requests a substation to send data. The received data is checked for transmission errors and acknowledged or requested again from the control station. BSC is suitable for point-to-point and point-to-multipoint connections.
The BSC protocol was developed in the 1960s and was the most widely used form of communication on large IBM computers in the 1960s and 1970s. It is still important, but has been increasingly being replaced by more powerful, bit-oriented protocols such as HDLC (High-Level Data Link Control) and SDLC (Synchronous Data Link Control) .