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:

• EAN / UPC (EAN-8 and UPC-E consists of 8 digits, UPC-A - consists of 12 digits in EAN-13 - used 13 digits)
• Codabar
• Code 128
• Code 39

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:

• PDF417
• RSS14
• Codablock-F

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

• Aztec Code
• Data Matrix
• MaxiCode
• QR code
• Han Xin