5 ms·
Are reads on a rope core memory destructive like on regular core memory? If so why not just tie each ROM bit high or low as needed? Is it because there was no
by ta0987 7y ago
Are reads on a rope core memory destructive like on regular core memory? If so why not just tie each ROM bit high or low as needed? Is it because there was no better way to address that many bits?
If you lost power after a read and before the rewrite would your ROM get corrupted?
It seems like the actual information should be in the weave pattern. Or, was there a reset line that reset all the cores at once?
- kens 7y agoReads 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.)