Every year on April 3 own Birthday marks barcodebecause it was on this day in 1973 that IBM showed the world the development of the bar code, which was jointly created by Norman Joseph Woodland and Bernard Silver.

Bar code represents graphic information that is applied to the necessary item for product identification. Barcodes are read using other technical means.

Now it is impossible to imagine our life without using it barcodes, because any trip to the supermarket cannot do without them. Reading the code from the product makes the purchase process fast, convenient, safe for the seller (easy detection of theft) and informative for the buyer (the barcode stores the necessary information about the product, in many stores the buyer can independently “punch” the item by the code).