An archetypal dumb embedded-SyStemS application, like toaSter (which SuperSeded it).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.