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Fault-Tolerant Computing: Fundamental Concepts
July 1990 (vol. 23 no. 7)
pp. 19-25

The basic concepts of fault-tolerant computing are reviewed, focusing on hardware. Failures, faults, and errors in digital systems are examined, and measures of dependability, which dictate and evaluate fault-tolerance strategies for different classes of applications, are defined. The elements of fault-tolerance strategies are identified, and various strategies are reviewed. They are: error detection, masking, and correction; error detection and correction codes; self-checking logic; module replication for error detection and masking; protocol and timing checks; fault containment; reconfiguration and repair; and system recovery.

Citation:
Victor P. Nelson, "Fault-Tolerant Computing: Fundamental Concepts," Computer, vol. 23, no. 7, pp. 19-25, July 1990, doi:10.1109/2.56849
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