Network, Computer and Programming Resources

Network - 3270

The 3270 designation is used for a line of terminals, communications controllers, and printers that are used with IBM mainframes. The 3270 devices use synchronous communications protocols, either SDLC (Synchronous Data Link Control) or BSC (Binary Synchronous Communication), to communicate with the host. In order for a stand-alone PC to communicate with an IBM mainframe, it must have an add-in board that enables the PC to emulate a 3270 terminal.