Um pouco de teoria sobre código de barras É difícil imaginar nossa vida sem códigos de barras, especialmente agora que os conhecemos a cada passo. Vamos ao cinema e nossos ingressos contêm esse “desenho de barras em preto e branco”, vamos ao supermercad...

CODE 39 é o código de barras desenvolvido pela Intermec Corporation em 1975. Até 43 caracteres, incluindo números, letras e alguns símbolos, podem ser incluídos no código de barras: 0123456789 ABCDEFG HIJKLMNOP QRSTUVWXYZ -. $ / +%. Como as letras pod...

Lately many countries have been digitizing payment processes. In other words, they convert existing payments to digital format. The most common way to automate payments is to use QR codes that are easily read by smartphones. The ability to encode a sufficiently large amount of information, high dama...

Recently many countries digitize payments. In other words, they convert existing payments to digital format. The most common way to automate payments is to use QR codes that are easily read by smartphones. The ability to encode a sufficiently large amount of information, high damage resistance, no n...

It's no longer a novelty to see a pixel QR barcode on the product packaging. Although it is more complicated than a regular bar code with stripes and it is undoubtedly more reliable. The technology of QR codes contains redundancy (duplication of information) and a checksum. Therefore, even with 30 p...

For more than half a century used barcodes. But this popularity they received during the database development. Barcodes allows you to quickly identify the goods and to find information about it in the database. However, today's two-dimensional bar codes can contain all the information about the prod...