The question of what is an analog computer and what isn't is purely academic and for the most part purely archaic. In today's parlance 'analog computer' is an oxymoron. The further you delve into precise definitions the closer you get to calling a post hole digger a computer. And if a thermometer is a computer, so is a wind-up alarm clock. And if you go around calling a thermometer, a clock and a post hole digger a computer, the only thing you will accomplish is confusion and argument.
So back to my point: you can defend archaic definitions all you want, and you can be technically and symantically correct, but from a practical standpoint calling a mechanical speed control on a tractor a computer is pointless and confusing.
Back in the old days a 'barber' was the same as a 'doctor'. Mistaking your barber for a doctor or your doctor for a barber nowadays is a sure fire way of getting a bad appendectomy, a bad haircut, or both.![]()
I believe you recently accused someone of absurdum reductio in a thread about hydro vs gear drives ?