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A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...
This template generates one or more links for finding data about a publication or other item via its Universal Product Code (UPC). Up to nine codes are supported. Up to nine codes are supported. Do not use spaces, dashes or other punctuation, just the numerals in the code.
GS1 introduced the barcode in 1974. [8] A barcode encodes a product identification number that can be scanned electronically, making it easier for products to be tracked, processed, and stored. Barcodes improve the efficiency, safety, speed and visibility of supply chains across physical and digital channels.
Interleaved 2 of 5 (ITF) is a continuous two-width barcode symbology encoding digits. It is used commercially on 135 film, for ITF-14 barcodes, and on cartons of some products, while the products inside are labeled with UPC or EAN. ITF was created by David Allais, who also invented barcodes Code 39, Code 11, Code 93, and Code 49.
An example of an EAN-8 barcode. An EAN-8 is an EAN/UPC symbology barcode and is derived from the longer International Article Number (EAN-13) code. [1] It was introduced for use on small packages where an EAN-13 barcode would be too large; for example on cigarettes, pencils, and chewing gum packets.
Patch Codes are often printed along all four edges of a page. That covers the requirements for many scanners, and it allows the pages to work even if the page is upside down (rotated 180 degrees). Sometimes, the Patch Code is the only information on a page. That is, the page is only used for controlling a scan.
The Universal Product Code has bit patterns at the beginning, middle and end of the barcode called "guard bars" and these have been interpreted as the digits 666. [8] When he first developed the code, Laurer noticed that the digit 6 appeared several times and that this might be interpreted as the number of the Beast , as his daughter was ...
Industrial 2 of 5 could include optional checksum character which is added to the end of the barcode. Industrial 2 of 5 features: character set is a number (0-9); encoding density low: barcode length on 50% longer than Interleaved 2 of 5 symbology and on 172% than Code 128; variable length of symbol; can include optional checking character.