"Core Memory" .. that brings back a memory. I worked on an unrelated system while in the USAF that had 512 bytes of core memory. We had a problem where the da

"Core Memory" .. that brings back a memory. I worked on an unrelated system while in the USAF that had 512 bytes of core memory. We had a problem where the data was getting corrupted some of the time, particularly on a message indicator byte that disrupted flow control. After a day of oscilloscope work, it turned out that one core in the array had gone bad, and it just happened to be in the "wrong" place. The system had been designed in the mid 1960's, and this particular core array had been running since 1970 or so, and this was 1985. So 14 or so years of continuous uptime. There's something to be said about building hardware at the macro size, not the micro size. ;)