A type of display element that shows readable numbers,
such as a clock or meter, instead of a rotary dial with
needles or "hands" pointing at a calibrated scale.

A numerically controlled interface.

Digital camera: stores colorimetric enumerations of a grid
array (2D graphics) memory, often compressed, for eventual
reproduction on a video screen or printer.

Modern (2009) Computers use meta-data in addition to mere
quantization, and descriptively named files also, since it
can be demonstrated on pre-millenial computers that a number
can also simultaneously be a picture and a sound and a text
file. In the 1970's it was common for large academic computer
rooms to be wallpapered with printouts of text ASCII art which
could be recognized as a photograph from across the room,
and also occasional tricks such as printing in such a way
that the printing mechanism noise would sound like familiar music.