Yes, barcodes are unique to each item. The barcode is a type of identifier that is used to quickly and accurately identify an item. It contains a series of lines and spaces that represent a unique sequence of numbers, named the Global Trade Item Number (GTIN). The GTIN identifies the manufacturer and specific product variant, so two products of the same type produced by different companies will have different barcodes. This uniqueness is important to ensure that products can be tracked throughout the supply chain, from manufacturer to consumer, and to prevent product counterfeiting. When a customer scans a barcode at the point of sale, the system can retrieve the product’s price, description, and other details from a database, allowing for easy and efficient transactions.