Xortran - A PDP-11 Neural Network With Backpropagation in Fortran IV (github.com)

When I studied cognitive psychology I remember one of the professors told us about how they had been playing with implementing neurals nets on their PDP11 back in the day. I remember thinking that had to have been be a total waste of time. Silly me.

I did a few systems like this in the early 80s, but by then I was on a Vax and running Fortran 77.

Nice to see this. It’s a good way to learn the basics without getting bogged down with modern complexities.