Converters are devices used to convert the waveform into a succession of binary Numbers, each representing the voltage level at a given instant.

Thereafter a waveform sequence is input into the digital-to-analog converter (100), wherein the waveform sequence has a zero offset at the boundary.

Since the 1970s a microprocessor, the use of microprocessors, ADC and DACs, hardware and software to expand the functions of the signal generator, a more complex waveforms.