If you want the practice, here's a core memory shield for an Arduino: https://www.tindie.com/products/kilpelaj/core-memory-shield-for-arduino/ https://www.tind

If you want the practice, here's a core memory shield for an Arduino: https://www.tindie.com/products/kilpelaj/core-memory-shield-for-arduino/ https://www.tindie.com/products/kilpelaj/core-memory-shield-...