what are upc codes
Universal Product Codes, or simply known as a UPC, is a 12 digit long number that appears on the majority of all United States products. These barcodes were originally intended to help grocery and department stores speed up their checkout process.niversal Product Codes, or simply known as a UPC, is a 12 digit long number that appears on the majority of all United States products. These barcodes were originally intended to help grocery and department stores speed up their checkout process.