Core Memory Explained and Demonstrated

Please visit our PCB sponsor: Ferrite core memory was the dominant computer memory technology from the 1950s to the late 1970s. Before we delve into the repair of our Apollo AGC core memory, I thought it would be good to explain how they work, as they are very different from modern semiconductor memory. Ken Shirriff has some of the best core memory write ups I know of, here: This one details the AGC core memory: