A fault tolerant processing system which includes a plurality of at least (3f+1) fault containment regions each including a plurality of processors and a network element connected to each of the processors and to the network elements of the other regions. Groups of processors are used to form redundant...http://www.google.com.tw/patents/US4907232?utm_source=gb-gplus-share專利 US4907232 - Fault-tolerant parallel processing system
