A pixel is a unit of colour which is visible as a point on an electronic display device such as a monitor or television screen.
The pixel is the smallest element of the screen’s picture which can be controlled.
Standard Definition Exists?
It is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.
Pixel, Pel, dots, picture element
Year first used/coined:
Frederic C. Billingsley