Tron

"Control. Order. Perfection. None of it meant a thing."
"Chaos. Good news."

- Flynn

When I got hooked on computers long ago, "TRON" was one of the words staring back at me, in the editor of the BASIC programming language:


This is what the first computers I had access to booted into.

TRON stands for TRace ON, and is used for debugging - figuring out what's wrong with a program.