A Simple Digital System - A Stopwatch
Most existing digital devices use sequential circuits that create or track sequences of events. Many of these must take certain actions for particular inputs, and different actions for other inputs. This implies the circuit maintains an internal state, so that it can respond to inputs contextually. Digital circuits that maintain state, and create or track sequences of inputs, are known as state machines. This project introduces state machines, and present a design project (a stopwatch) that requires a state machine.