What is a pixel?

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.

Technology Term:

Pixel

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.

Accepted Acronym:

Pixel, Pel, dots, picture element

Year first used/coined:

1965

Attributed to:

Frederic C. Billingsley

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