The bar code is a graphical identifier of multiple black bars and blanks of varying widths, arranged according to certain coding rules to express a set of information. A common barcode is a pattern of parallel lines made up of black bars (referred to as bars) and white bars (referred to as blanks) of widely varying reflectivity.
The bar code can indicate the country of production of the item, the manufacturer, the name of the product, the date of production, the book classification number, the starting and ending places of the mail, the category, the date and so on many information, and therefore in the distribution of goods, library management, postal management, the banking system, and so on in many fields have been widely used.
Barcode technology is a widely used in business, postal services, library management, warehousing, industrial production process control, transportation, packaging, distribution and other areas of automatic identification technology developed in computer applications. It first appeared in the 1940s, is "by a set of rules arranged by the bar, empty and its corresponding characters, used to indicate that certain information of the logo.
Expanded Information:
Goods barcode includes the code and barcode identification of retail goods, non-retail goods, logistics units, and locations. China adopts the international common commodity code and barcode identification system, promotes the application of commodity barcode, and establishes China's commodity identification system.
Retail merchandise refers to the merchandise settled through POS scanning at the retail end. Its barcode identification consists of Global Trade Item Code (GTIN) and its corresponding barcode symbol. The barcode identification of retail goods mainly adopts EAN/UPC barcode. A combination package of a beer, a bottle of shampoo and a bottle of conditioner can all be sold to the final consumer as a retail item.
Baidu Encyclopedia - Barcode