dot matrices

dot matrix

noun Computers.
a method of forming characters and graphics, used by CRTs and other screens, some printers (dot-matrix printers) and some plotters, by creating the desired pattern using dots from a dense matrix.

Origin:
1960–65

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
dot matrix

noun
a rectangular matrix of dots from which written characters can be formed 
WordNet® 3.0, © 2006 by Princeton University.
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