Dot matrix

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Dot matrix is a 2-dimensional array of dots used to represent characters, symbols and images. Typically the dot matrix is used in older computer printers and many digital display devices. In printers, the dots are usually the darkened areas of the paper. In displays, the dots may light up, as in an LED or CRT display, or darken, as in an LCD, however multicolour LCDs are sometimes initially dark and light up.


Reference

  1. Wikipedia see Dot matrix [1]
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