1. < project > The Real-Time Operating System Nucleus .
2. (TRace ON) A command used when debugging programs written in early line-numbered BASIC that contained GOTO and GOSUB statements.
When the TRON command had been executed , the program ran with a window open indicating the line number being executed at that instant.
The TROFF (an abbreviation for "TRace OFF") command turned the tracing off.
(2003-02-02)