[cctalk] Re: Computer Museum uses GreaseWeazle to help exonerate Maryland Man

ot sure about that. What sort of numbers are we talking about? I don't know for sure and can't find any references, but I strongly suspect that core memory would wear out over time, as well. My reasoning for this is the because in principle it works the same as FRAM. I usually refer to FRAM as "core on a chip." Over time, the magnetic domains in FRAM tend to stay in one polarization or another. I see no reason why the magnetic domains in core wouldn't do the same. However, a single core is probably bigger than the entire FRAM chip so there are a LOT more domains. That means it would take a proportional amount of writes to wear out -- let's just say a million times. In addition, core access was in microseconds, whereas FRAM and other modern memories are in nanoseconds. So it takes something like 1000 times longer on the clock on the wall to perform the same number of writes. So in the end something like a billion times longer on the calendar to wear it out. I would be very interested if anyone actually knows and especially if there are references available. Will