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Bar code - barcode

Barcode is a graphic representation in which different information is encoded. To read a barcode requires special equipment. The first barcode was invented in 1932.
Barcodes are linear and two-dimensional (2d).
Linear bar code consists of stripes. Reading linear codes is performed in the horizontal plane.
Linear codes include:

The two-dimensional barcode encodes a large amount of information. Reading two-dimensional codes is performed in horizontal and vertical direction.
These codes consist of a stacked and matrix.
Stacked barcode is a linear bar code consisting of several rows.
Two-dimensional stacked barcodes include:

Matrix bar code consists of equal components of the horizontal and vertical.
Two-dimensional matrix barcodes include: