A digital system is a data technology that uses discrete (discontinuous) values. By contrast, non-digital systems use a continuous range of values to represent information. Although digital representations are discrete, the information represented can be either discrete, such as numbers, letters or icons, or continuous, such as sounds, images, and other measurements of continuous systems.
OmegaWiki Dictionary
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digital Having to do with digits (fingers or toes); performed with a finger.
digital Of or relating to computers or the Computer Age.
digital Property of representing values as discrete numbers rather than a continuous spectrum.
