Pixel A pixel is a tiny, single dot, among thousands of dots, on a digital display.  Each dot (or pixel) can take on virtually any color.  The pixels collectively form the image your eyes see as a picture.
Resolution This represents the number of pixels the screen can show at once.  Resolution describes a grid of pixels, such as 800 pixels wide by 600 pixels high.
Aspect Ratio Aspect ratio is a measure of scale.  It describes the relationship of width to height.  An aspect ratio of 16:10 means the display format shows 16 inches in width for every 10 inches of height.

 

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