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A Damage- and Fault-Tolerant Input/Output Network
May 1975 (vol. 24 no. 5)
pp. 505-512
T.B. Smith, C. S. Draper Laboratory
A damage-and fault-tolerant input/output (I/O) network is presented as an alternative to I/O buses. Such a network differs most significantly from telecommunications networks (such as the ARPA net) in that the nodes of this net are very simple and do not perform such tasks as message or packet switching and buffering. Data routing through the net is directly controlled by a centralized processor with control algorithms being implemented in software. Descriptions of both the network hardware and the most vital points of the control software are provided. It is believed that this network construction represents both an economically viable alternative to data buses and a significant improvement in reliability and survivability, particularly in those applications where physical damage to elements of the I/O system is a possibility, such as in aircraft, shipboard, rapid transit, and industrial situations.
Index Terms:
Computer communications, computer networks, computer input and output, damage tolerance, digital control systems, fault tolerance, highly reliable systems, system test.
Citation:
T.B. Smith, "A Damage- and Fault-Tolerant Input/Output Network," IEEE Transactions on Computers, vol. 24, no. 5, pp. 505-512, May 1975, doi:10.1109/T-C.1975.224253
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