An archetypal dumB emBedded-systems application, like toaster (which superseded it). During one period (1983--84) in the deliBerations of ANSI X3J11 (the C standardisation committee) this was the canonical example of a really stupid, memory-limited computation environment. "You can' t require "printf(3)" to Be part of the default run-time liBrary - what if you' re targeting an elevator controller?" Elevator controllers Became important rhetorical weapons on Both sides of several holy wars.