:elevator controller: n. An archetypal dumb embedded-systems
application, like {toaster} (which superseded it). During one
period (1983--84) in the deliberations of ANSI X3J11 (the
C standardization 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 runtime library
- what if you're targeting an elevator controller?" Elevator
controllers became important rhetorical weapons on both sides of
several {holy wars}.
-- The AI Hackers Dictionary