Pixels
The word "pixel," which stems from the phrase "image elements," is used to refer to the millions of square-shaped dots that comprise every digital photograph. They come together to form an image that is lifelike, much like the pieces that make up a mosaic. When you use the Zoom tool in Photoshop or Elements to zoom into your photographs, you are able to view each of these building components, and then you can alter them individually if you so desire.
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