LOGO was a computer language established for educational use and is best known for its Turtle which could be a robot to move around or a marker to draw graphics. It was a "list driven" language with procedures which called procedures.
TI supplied LOGO as a module which was able to use cassette and disk program storage.
The TI version lacked recursion and proper bit map graphics. A pseudo bit map graphic was used which could "run out of ink" (or run out of screen characters to redefine).