The first product with a barcode to be scanned at the checkout was recorded as a pack of Wrigley's gum, and it was in Ohio in 1974. This is the task we all know today as barcodes, which have become almost universal and will still be relevant today. Barcodes were generated and used in supermarkets to automate checkout tasks. It was in the early 1970s that the utility of bar codes took on its full meaning. Only 20 years later, after the development of technology, solutions could be developed and utilized. In order to translate these black bars and blank messages, it was necessary to scan this code with a light. Then they had the rich idea of combining the sound system of a movie with Morse code.

In 1952, the first patent on bar codes was filed by two Americans, Joseph Woodland and Bernard Silver, who were looking for a solution to automatically register a manufacturer's product.

Today, all items intended for sale in physical retail stores or markets must carry a barcode. It is represented by a black bar and a blank or black and white line and is intended to be deciphered by the reader to provide information about origin, manufacturer, product reference, etc.īar codes are ubiquitous and appear on almost all products we buy in stores: food, clothes, books, medicines. The bar code is a graphic representation of the product code (GTIN). The code consists of a series of numbers called GTIN (Global Trade Item Number) and has 13 digits. The symbol allows for automatic data entry each time the article is read. A barcode is a graphic transcription of a number. The code and barcode form an inseparable whole for identification at checkout. Barcodes are the traceability system used by most companies in all industries.

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