This is a distributed computing system providing flexible fault tolerance; ease of software design and concurrency specification; and dynamic balance of the loads. The system comprises a plurality of computers each having a first input/output interface and a second input/output interface for interfacing...http://www.google.de/patents/US4933936?utm_source=gb-gplus-sharePatent US4933936 - Distributed computing system with dual independent communications paths between computers and employing split tokens
