<https://www.tomshardware.com/tech-industry/eniac-the-worlds-first-general-purpose-digital-computer-turns-80-years-old-today-legendary-hulking-machine-was-1-000x-faster-than-its-nearest-rival> In fact the Bletchley Park “Colossus” machine (that Alan Turing had a hand in) was working a little before ENIAC, but the existence of that was kept strictly secret until about the 1970s. The hardware engineers who built the early electronic computers didn’t really appreciate the importance and subtlety of the programming problem -- they saw it as a mere janitorial chore, that could be delegated to lower-paid underlings, like women. Here <https://www.youtube.com/watch?v=buAYHonF968> is the testimony of one of those women, and the clever innovations they developed to facilitate the programming process.