When analyzing individual gates in circuitry, one usually assumes that inputs are either 0 or 1, as are the outputs, but the fact is that these input values are really either h igh voltage or l ow voltage. Determining whether or not a given input is to be considered as high or low depends on a physical measurement of the voltage. Since physical measurement is never exact, it is more realistic to consider h igh, l ow, and i ndeterminate, hence considering three possible values, rather than two, when reasoning about computer hardware. When considering physical measurement as part of the determination as to what inputs and outputs are for a given gate, one can no longer reason about these gates using boolean logic. There are several possible non-boolean alternatives one may consider. We will examine motivation for some such alternatives and point out how we might apply them to a particular model of computation: the billiard ball model.