K, turns out it was actually Michigan Algorithm Decoder:

https://en.wikipedia.org/wiki/MAD_(programming_language)

So, not quite as old-school as the analog days :-p

I was trying to imagine how an analogue component could be anything but a sensor for a mainframe in a factory or something. A programming language called MAD makes so much more sense. :)

Just googled it myself and found the same -- following up with her about the name.