Understand the structure of the Barcodes and how you can use them?


Not everyone understands all about barcodes, in this article, we will clearly explain what barcode is? Bar code is the representation of information in visible forms on the surfaces of products or goods that can be read by machines. Barcodes can be read by optical scanning devices called barcode readers or scanned from images using specialized software.


Barcode is by definition a method of storing and transmitting information by means of a type of symbols called Barcode symbology. Bar code symbol, or symbol for short, is also a symbol, which is a symbol of a combination of spaces and lines to represent letters, symbols and numbers. Variations in line widths and spaces represent numeric or numeric information in a machine-readable form.

The bar code number is captured by a barcode scanner, which is an image receiver of bar codes printed on surfaces and transmits the information contained in the barcode to a computer or other device that needs this information. It usually has a light source attached to a lens, to focus light on the barcode, and then capture the light reflected on a photosensitive that converts the light signal into an electrical signal. In addition, many barcode scanners also have electronic circuits that process the signals obtained from the photosensitive to convert them into signals suitable for connection to a computer.


It can be said that you can buy barcodes are like an army of familiar symbols, they appear everywhere, everywhere, on most products legally circulating in the market. Everyone sees them, but few people understand much about them. But because they think barcodes are “innocuous”, nobody cares about them. When asked about barcodes, most people only know the bar code is … the bar code. It encodes a number that people do not understand. Of course, of course, a barcode has only one type … a barcode and it is used to store a certain number such as price.

Barcodes actually include many different types. Depending on the amount of information, the encoded information format as well as the purpose of its use, it is divided into many categories, among which the most common types on the market are UPC, EAN, Code 39, Interleaved 2of 5, Codabar and Code 128. In addition, in some types of barcodes, there are many different versions, with different purposes, for example, UPC has versions as UPC-A, UPC- B, UPC-C, UPC-D and UPC-E; EAN has versions EAN-8, EAN-13, EAN-14, Code 128 including Code 128 Auto, Code 128-A, Code 128-B, Code 128-C.

UPC (Universal Product Code)

UPC is a type of digital coding symbol adopted by the food industry in 1973 and best for Amazon Barcode. The food industry has developed this system to assign non-duplicate codes to each product. UPCs are used as a “digital license” for individual products.

UPC consists of two parts: the barcode that the machine can read and the part that the human can read. UPC’s number consists of 12 digits, not including characters. These are the codes used to identify each individual consumer product.


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