What is a barcode? A barcode is a coded form of an identifier consisting of numbers and letters that can be optically read by machines. A barcode indicates only an identifier, a reference that points to a specific element of a database. All other information, such as the price of a product or the current stock, is stored in the database.
EAN code and UPC barcodes for Amazon of American origin are used as product codes for products all over the world. If you look under the barcode, a small number is written so that it can be read by humans, but this number is the product code inside the barcode.
The barcode differs from the Morse code in two essential points. On the one hand, the “pause” between modules is not simply used to separate the signal, but can itself be signal-valued information, so the barcode consists of a series of dark and light modules. On the other hand, a character to be coded always consists of a fixed number of modules, and within it the number of dark and light signal pairs is also fixed.
Bar code technology is a relatively young field, the formation and development of different types of codes does not depend on the lack or availability of mathematical apparatus. Created is closely related to the technical capabilities of the tools required for reading and printing. Their elementary resolution, sensitivity, fault tolerance, and physical size had a significant effect on the amount of data that could be encoded. The development of laser technology, which allowed for greater reliability at smaller sizes, did not bring about a change in the size of the information that could be processed in this way, so the development continued in the direction of two-dimensional barcodes. You can buy barcodes for your inventory management and tracking online products sales.
1D: A specific alternation of vertical dark lines and light gaps of different thicknesses expresses information to readers.
EAN 13 barcode
EAN 13 barcodes are widespread in retail worldwide. The EAN 13 barcode encodes 13 characters: the first two or three lines are the country code indicating in which country the manufacturer is registered. The country code is choked with 9 or 10 data ticket numbers and a checksum. The EAN 13 barcode can be expanded with two or five digit additional barcodes to access the 14 or 17 digit barcode.
EAN 8 barcode
EAN 8 is a barcode, an abbreviated version of EAN-13. The first two or three lines of the barcodes denote the country code, 4 of 5 data digits, and the checksum. The EAN 8 barcode can be expanded with a 2 or 5 digit extension. The main purpose of the EAN 8 barcode is to take up as little space as possible. The EAN 8 barcode identifies the manufacturer and the product. Because the EAN 8 barcode has a smaller country-specific code range than EAN 13, the EAN 8 barcode is only placed on products that are not compatible with EAN-13.
