The Open Systems Adapter (OSA) is a network controller for
IBM z/Architecture,
ES/9000 and
S/390
The IBM System/390 is a discontinued mainframe product family implementing the ESA/390, the fifth generation of the System/360 instruction set architecture. The first computers to use the ESA/390 were the Enterprise System/9000 (ES/90 ...
mainframes. The OSA supports
Ethernet,
Token Ring and
FDDI connectivity.
IBM Redbook - Networking with z/OS and Cisco Routers: An Interoperability Guide
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References
External links
Networking hardware
IBM System/360 mainframe line
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