75 years ago today, the University of Pennsylvania launched ENIAC, the first non-classified programmable digital computer <https://www.theregister.com/2021/02/15/eniac_day/>. (The UK Colossus preceded it, but the existence of that was kept secret for a few more decades.) This was not a “stored-program” machine, at least not at first: programming was initially done using patch cords and switches. You may also like this interview <https://www.youtube.com/watch?v=buAYHonF968> with the late Jean Jennings Bartik, about some of the fun she and her colleagues had programming the ENIAC, and the innovations they came up with. The electronics engineers who built the first computers didn’t think of programming as a very interesting activity, so they left it to women.