My name is Steve. This was on a Commodore PET (8032 I think), then as a general rule I did this on every system with BASIC that I could as a check to make sure everything works, and as a little in-joke for myself.
I've done equivalents in nearly every language I've written in. I'm sure if anyone sees me doing it they must think I'm a right idiot but it's my personal equivalent of Hello, World.
Apple fanboism runs deep in this one
;P