Reads on a core rope are nondestructive, since the information is hard-wired into the weaving pattern. Unlike regular core memory, there's no way for the data t

Reads on a core rope are nondestructive, since the information is hard-wired into the weaving pattern. Unlike regular core memory, there's no way for the data to get corrupted. (Unless, of course, there's a component failure. When reading the modules at the Computer History Museum, we discovered that two strands had one-bit failures, probably due to failed diodes. Fortunately, since the module has parity, we could recover the data despite the corruption.)