The Apple II Source Code for the LOGO Language Found

That Turtle!

This is wonderful!

My first paid programming job was writing a Logo Adventure program for C64 Terrapin Logo. They wanted a simple non-graphical game that showed off Logo's list processing capabilities, and I just used Logo's top level interpreter as the parser! That saved a lot of coding, but it did let you cheat (aka "learn to understand and program and debug Logo").

https://medium.com/@donhopkins/logo-adventure-for-c64-terrap...

Here is the source code to LLogo in MACLISP, which I stashed from the MIT-AI ITS system. It's a fascinating historical document, 12,480 lines of beautiful practical lisp code, defining where the rubber meets the road, with drivers for hardware like pots, plotters, robotic turtles, TV turtles, graphical displays, XGP laser printers, music devices, and lots of other interesting code and comments.

http://donhopkins.com/home/archive/lisp/llogo.lisp

Good old 6 character identifier names. That really required some creativity, both to keep some descriptive value as well as to not generate identical identifiers by accident.

Me too. I really liked Logo. I worked as "child volunteer" at and art museums "festival of the future" making logo spirographs for interested visitors. It was the early 80s and the apple ][+ 's 7 colors (2 white and 2 black..) was pretty bad compared till today, but we didn't care because not much was better.

Basic was built in so I ended up going back to that. I learned logo, pascal and basic, but being built in and not having access to pascal at home made my choice.

I did return to logo in high school on macs for some neat fractal and equation graphing programs.

FWIW, VisiCalc - first spreadsheet computer program for personal computers - was developed in 1979 on the MIT Multics system, which was a Honeywell machine, and Electric Pencil - first word processor for personal computers - was (as far as I can tell) developed in 1976 on the Altair.