elevator controller

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toaster (which superseded it).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.