Anytime I hear about Forth I will forever be reminded of this:
http://www.atarimania.com/documents/FORTH-on-the-Atari-Learn...
http://www.atarimania.com/documents/FORTH-on-the-Atari-Learn...
http://vignette2.wikia.nocookie.net/technicpack/images/9/96/...
https://technicpack.fandom.com/wiki/Basic_Forth_Programming
ComputerCraft (programmed in lua usually) is more common these days.