Y-term is a file transfer protocol used on some IBM mainframe computer
systems. FutureSoft sells a program, called DynaComm, that provides the
Y-term file transfer protocol for the Macintosh. The communication session
must be initiated through an IBM 7171 or Series 1 protocol converter. The
terminal that is emulated is a VT100.
For more details, search the Tech Info Library under "FutureSoft."