My first program was written in FOCAL, although I never got to execute it. My dad brought home a bunch of books from a local computer electronics distributor in trade for some work my dad had done for him. They included the PDP-8 books, with the FOCAL programming language as one of them. I started reading this (at age 8), and after staring hard at it, I wrote a program to add or subtract a couple of numbers. I remember running in to my dad's workshop carrying a piece of paper saying "Dad, this is what I want to do!" and from there my entire career started.