Binary

A cornerstone of digital systems is the binary counting method, where each digit can have only two different values: 0 or 1; off or on; low or high. A binary signal can only have one of these two states. Therefore, a gate or trigger signal in a modular synth – even if generated by analog circuitry – could be referred to as a binary type signal. See the entry for Boolean for things you can do with binary signals like gates and divided clocks.