IBM_37xx
IBM 37xx
Series of mainframe communication controllers manufactured by IBM
IBM 37xx (or 37x5) is a family of IBM Systems Network Architecture (SNA) programmable communications controllers used mainly in mainframe environments.
This article needs additional citations for verification. (September 2012) |
All members of the family ran one of three IBM-supplied programs.
- Emulation Program (EP) mimicked the operation of the older IBM 270x non-programmable controllers.
- Network Control Program (NCP) supported Systems Network Architecture devices.
- Partitioned Emulation Program (PEP) combined the functions of the two.