A dot matrix is a 2-dimensional array of dots used to represent characters, symbols and images.
"Dot matrix" may also refer to:-
Dot matrix printing (or impact matrix printing), a type of computer printing Dot matrix printers, computer printers that implement dot-matrix impact printing Dot-matrix display, a type of display device Dot plot (bioinformatics), a display convention for illustrating the alignment of two DNA or protein sequences. Dot Matrix, a character from the animated television series ReBoot Dot Matrix, a character from the film Spaceballs QR code, a matrix of square dots