TI-Basic was effectively my first programming language. Instead of paying attention in Calculus, I was making the world's buggiest sudoku solver. Will always have a special place in my heart as well.
Also, a game where the player tried to catch a bird that hopped randomly around the screen. Somewhere I’ve got those programs written on paper.
With a family move to a new city during summer break, purchased an '85 and spent the entirety of the last summer month just programming things in it.
Haven't stopped programing since.