> On May 24, 2016, at 2:07 PM, Chuck Guzis <ccl...@sydex.com> wrote: > > On 05/24/2016 11:00 AM, jwsmobile wrote: > >> Diode boards were one form of read only storage in systems. Another >> was the IBM and other's capacitance system. > > ...and the "transformer" ROS used on the 360/40 (and others).
You mean "Core rope memory"? I just fixed the Wikipedia article to correct the history for that technology. paul