For historical background, read up on Konrad Zuse[1], who built possibly the first programmable digital computer, using relays, the Z3[2], in 1941. (Neither ENI

For historical background, read up on Konrad Zuse[1], who built possibly the first programmable digital computer, using relays, the Z3[2], in 1941. (Neither ENIAC nor Colossus were operational for another couple of years.) There is a much later Zuse design, from discrete transistors, the Z23, in the collection of the Computer History Museum[3]. [1] https://en.wikipedia.org/wiki/Konrad_Zuse https://en.wikipedia.org/wiki/Konrad_Zuse [2] https://en.wikipedia.org/wiki/Z3_(computer) https://en.wikipedia.org/wiki/Z3_(computer) [3] https://www.computerhistory.org/collections/catalog/102669947 https://www.computerhistory.org/collections/catalog/10266994...