what is a pixel
Pixel. Term that comes from the words Picture Element (PEL) . A pixel (px) is the smallest portion of an image or display that a computer is capable of printing or displaying. You can get a better understanding of what a pixel is when zooming into an image as seen in the example to the right.erm that comes from the words Picture Element (PEL) . A pixel (px) is the smallest portion of an image or display that a computer is capable of printing or displaying.