| 1. | a method of sound recording in which an input audio waveform is sampled at regular intervals, usually between 40,000 and 50,000 times per second, and each sample is assigned a numerical value, usually expressed in binary notation. |
| 2. | a record or tape made by this method. Compare analog recording. |
| 3. | Computers. a system of recording information on magnetic tape for processing by a digital computer. |