Casio AI-1000 Pocket Lisp Computer from 1989 [video]
I learned programming around 1985 on one of these Casio pocket computers. It ran Basic interpreter not lisp. Incredible little machine. It looked like this: <a href="https://www.ebay.com/itm/143595147094" rel="nofollow">https://www.ebay.com/itm/143595147094</a> I probably would not be a software engineer at a top company today without it.