UPC codes are 12 vertical bars on product packaging for inventory management. First five digits represent manufacturer identification number. Next five digits are unique item numbers, last digit is check digit
EAN stands for European Article Number, a 1D barcode for product identification. Contains product information like numbers, prices, and weights. Developed as an extension of UPC system in 1970s
GS1 sets global standards for barcodes and data in supply chains. GTIN (Global Trade Item Number) is fundamental for identifying items. Each item and packaging level requires unique GTIN
EAN is a standardized barcode used worldwide for commercial products. Compatible with UPC in USA/Canada and JAN in Japan. Used in POS systems for sales, stock and purchase management
UPC is an 8-12 digit product identification system used worldwide. First widely adopted barcode system, established in 1973 by grocery industry. First six-ten digits represent manufacturer, next five represent item