The word “Pixel” means a picture element. This is the smallest element of an image. Pixels are generally square or round. Typically, they are arranged in a two-dimensional grid to create an image. Each pixel can be turned on (illuminated) or off (darkened) on a screen (Computer Monitor, Television Screen, Mobile Screen). Resolution of an image depends on the number of pixels a monitor can display. Normally, VGA monitors display 640 x 480 (307,200) pixels per inch (PPI), SVGA monitors display 1,073 x 768 (786,432) PPI, and latest monitors can display up to 1,000 x 1,000 (one million) or more PPI.
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