Diverse systems of codification exist: in the Alphabetical System, the materials are codified in accordance with the letters of the alphabet; in the Alphanumeric one, the possibility to combine letters and numbers, makes possible a bigger flexibility in the data; already the numerical system, possesss enormous amplitude, also having important variations, amongst which if it detaches the Federal American System (SUPPLY CLASSIFICATION). (DAYS, 2010, P. 190).
However, the system more used by the companies, is the System Decimal and the system of bar code that will be exemplificados to follow. 4,1 System Decimal Using the example of Days (2010), imagines that a company uses a classification that specifies the diverse types of products in the supply: 01? raw material 02? oils, fuels and lubricant. 03? products and process 04? finished products 05? products clerical. It is verified that all the products are codified in accordance with general headings, reflecting the characteristics of each one. After that each product is made a subdivision individualizando. For example: 05? products clerical 1? penxses 2? paper 3? ruler 4,1 Systems of bar codes In the current context of the administration of supplies, new tools come being used of form each more intense time, mainly for the great companies who possess a bigger dependence of more efficient and rigorous systems of information.
Systems ID and ERP are example of management systems that possess a bigger precision in the information, this fact potencializa the rationalization in the managemental decisions (RIBEIRO, 2010). Amongst these, the System of Generation of Bar codes? SGC, possess an including applicability, for allowing that products with different characteristics, forms, purpose etc.
The diverse orators and philosophers of the time had made history and changed the way to think of the society. In accordance with the history of the communication (to see annex, figure 1), diverse important changes had occurred in its process, such as: creation of the post offices and telegraphs, invention of the telephone, radio, cinema, but none of them was so significant how much the sprouting of internet..2.2 Internet In accordance with Albertin (2004), the Internet was idealized for a system of communication of military information in 1969, for the Advanced Research Projects Agency (ARPA), that it was part of the American department of defense. This project consisted in the accomplishment of a study for the creation of a net that could connect long-distance computers, in way that, if some of them was off, would not affect the traffic of the information of the too much computers. Another important step in the creation of the Internet was the evolution of the telnet, developed for ' ' National Center will be Supercomputing Aplications' ' (NCSA) and protocol ftp, where net telnet allowed the remote access and protocol ftp standardized the transference of archives between computers. In 1974, company BBN inaugurated the Telenet, that was the first public service of the package of data, a species of commercial version of the Arpanet. (ZIMMERMAN, SCHULLO, REEDY, 2001).