COMPUTER IMPLEMENTED METHOD OF DETECTING AND ISOLATING ELECTRICAL FAULTS IN CORE MEMORY SYSTEMS

摘要

A computer implemented method of detecting and isolating both permanent and intermittent electrical failures in core memory systems is based upon a unique code number associated with each potential failure and derived from the symmetry of the relationship among the memory components for any selected word. The address of each failing memory word is decoded and all of the decoded address fields are OR'ed, on a bit by bit basis to provide a code number indicative of a combination of word failures which is correlated to the specific component failure.