Synchronous Backplane Interconnect

Internal processor-memory bus

The Synchronous Backplane Interconnect (SBI) was the internal processor-memory bus used by early VAX computers manufactured by the Digital Equipment Corporation of Maynard, Massachusetts.

The bus was implemented using Schottky TTL logic levels and allowed multiprocessor operation.

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Digital Equipment Corporation
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  • Ken Olsen (founder and CEO, 1957–1992)
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