LOGO (which is really Lisp) on a TI 99/4A changed my life. It was where I had that first epiphany that software is just "castles in the sky." It can be anything

LOGO (which is really Lisp) on a TI 99/4A changed my life. It was where I had that first epiphany that software is just "castles in the sky." It can be anything you want.