Open Systems Adapter
Encyclopedia
The Open Systems Adapter (OSA) is a network controller for IBM
Z/OS
, ES/9000 and S/390 mainframes. The OSA supports Ethernet
, Token Ring and FDDI connectivity.
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...
Z/OS
Z/OS
z/OS is a 64-bit operating system for mainframe computers, produced by IBM. It derives from and is the successor to OS/390, which in turn followed a string of MVS versions.Starting with earliest:*OS/VS2 Release 2 through Release 3.8...
, ES/9000 and S/390 mainframes. The OSA supports Ethernet
Ethernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....
, Token Ring and FDDI connectivity.