Digital

Digital and analog signals are a means of representing information. Digital signals can only take certain discrete values, such as two in the binary system, e.g. high and low.

Electronics
Commonly seen as e.g. TTL and CMOS ICs and microcontrollers.

Synthesis
Digital synthesizers operate entirely in the digital domain with the waveforms and aparent processing of them (such as FM) being derived mathematicaly from data. The data stream is converted to an analogue waveform by the use of DACs (Digital to Analogue Converters). Digital synthesizers produce an analogue waveform (as a variable voltage electrical signal) at the outputs (i.e. the jack sockets).

Uses

 * MIDI
 * Gate in CV/gate