1. A system of photography that uses a sensor placed behind a camera lens to translate an image into an electronic signal, which can be stored on a disk or magnetic tape for playback on a VCR or videodisc player and viewing on a television screen.
2. Using computers and/or specialized hardware/software to capture (copy), store, process, manipulate, and distribute "flat information" including documents, photographs, paintings, drawings, and plans, through digitization.
3. A photographic system in which a sensor is placed behind a camera lens to convert an image into an electronic signal, that can be stored for later playback on a television screen.