A pixel is a basic unit of composition for an image to be displayed on
currenet video display devices..

[[additional details to be filled in later.]]

[TV] Short for picture element. Not to be confused with Pixar, one of the most well known early computer graphics companies.

Or Voxel, which is volume element.
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A pixel is NOT a unit of measurement. (A unit of measurement is something that has a precisely defined length. But pixels vary in size - and can be any size you want.)

A pixel is an area that's painted a single colour. It's typically needle point-sized - and occurs along with other pixels in a rectangular grid - such as pixels on a computer monitor, graphic image or paper print-out.
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That's cheating... And it's "current" not "currenet"... And pixels aren't restricted to video "current video display devices". They're found on past and (no doubt) future ones too. And printers. And many types of LED and other illuminated display devices.
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[Category Glossary]
| [Category Graphics]