The PCI CompuGen family of ultrafast AWG (arbitrary-waveform-generator) cards has a 12-bit resolution. The 11G member of the family features a 1 billion/sec conversion rate with a single channel; the 4300 has a 300 million/sec rate with four channels; and the 8150 has a 150 million/sec rate with eight channels. These waveform generator and function-generator cards provide aperiodic analog waveforms by creating digital representations of the waveform in the onboard memory of the card.