Bar codes, also called bar codes, consist of several black stripes of different thicknesses on a white background, with various distances between them. They belong to the binary codes. These bar codes are based on a coding rule according to which they are arranged. The barcodes can be decoded, i.e. read, with the aid of optical readers.
This is an optoelectronically readable script. Coding is the representation of data in binary symbols. This allows a lot of data to be compressed into a small space.Today, these bar codes can be found on almost every item. For example, 98 percent of groceries and a good 80 percent of all other items now have this code, which means a big savings in administrative and logistical costs for retailers.Barcodes are a real competitive advantageWhile barcodes on goods are not required by law, manufacturers who want to sell their goods in supermarkets, department stores, and online stores like Amazon must all have these barcodes. This is because the barcodes are a huge time saver when it comes to checkout, putaway or inventory, and no one wants to do without them these days.
Nevertheless, it took a long time until 2003, when Aldinord, the last of the large German retailers, also switched to scanning. The barcode was invented as early as 1948 by two American engineering students. Joseph Woodland and Bernard Silver took up the wish of a supermarket manager who wanted to automatically record the departure of goods at the checkout.This is how barcodes workThe width of the bars, with their intervening distances, is read by a barcode reader, barcode scanner by means of reflection. The scanned string of characters, which can be numeric or alphanumeric, is passed directly to an appropriate IT system, which processes the data electronically and then makes it available to the system again. Since the accuracy of the data transmission must be guaranteed and due to the low print tolerance, the last, 13th digit is always a check digit, which is calculated from the remaining digits.
If this does not result in the correct check digit, there must therefore be an error.Different barcode typesIn use for the various types of use include Code 128, 128A, 128B, 128C, GS1-128, EAN-128 and EAN-13, GTIN-13, the classic barcode of the retail trade for product identification with European article numbers.Barcodes help shop founders save time and nervesWhoever only thinks of barcode scanners in terms of the devices at discount checkouts has not yet recognised the full range of possibilities offered by barcode readers. These are possible applications:- fast transmission of product information, independent of time and place- start-ups, where there is only little movement of goods, the barcode scanning system gives the possibility of a structuring of all movements- organize the webshop with barcodes. For those who run an online shop also need a small warehouse, whose incoming and outgoing goods must be documented, but also when goods are shipped or returned. In this case, the barcode scanner can record the movement of goods accordingly.- The barcode scanner can organize the cooperation between individual employees.How can you create a barcode?For this you need an appropriate software, a barcode generator such as at https://www.shopify.de/tools/strichcode-generator. With it, anyone can create a barcode in good quality and completely free.