Core Memory Explained and Demonstrated

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. Check out our Russian core memory follow up video here: https://www.youtube.com/watch?v=7ozNMgx7WtQ Ken Shirriff has some of the best core memory write ups I know of, here: http://www.righto.com/2015/08/examining-core-memory-module-inside.html This one details the AGC core memory: http://www.righto.com/2019/01/inside-apollo-guidance-computers-core.html We also found this page from Brent Hilpert very helpful: http://madrona.ca/e/coremem/index.html Our sponsor for PCBs: https://www.pcbway.com Support the team on Patreon: https://www.patreon.com/curiousmarc Merch on Teespring: https://teespring.com/stores/curiousmarcs-store Learn more on companion site: https://www.curiousmarc.com Contact info: https://www.youtube.com/curiousmarc/about Music Credits: Crinoline Dreams Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/