Net Search America

Communication as a matter of national survival. So in 1975, the Department of Defense United States tended experimental computer network, ARPANET, the ancestor of what we now know as the Internet. No bomb devastated the States America, as we well know, but the interest in computer networks is not diluted and, better still, he moved to a more peaceful and fertile territory, universities. At the beginning of the last decade of the twentieth century, Tim Berners-Lee was working for the European Organization for Nuclear Research (CERN for its French name). Facilitate the exchange of data, results and news from the scientists, give them a useful computer tool agilisima, such was the purpose of Berners-Lee. In 1991, British mathematician invented the first browser, the WorldWideWeb (or, as he is known more commonly,). What was his invention? Well, in a kind of lingua franca computer, which crossed the transfer of large amounts of information from one computer to another.

Thanks to the (the program), this was the birth of the Internet (physical network). The web addresses, see an acronym that summarizes the contribution of Berners-Lee: (Hypertext Transfer Protocol). Key concept here, Hypertext means peaceful coexistence, on a support, multi-user resources managed according to your mood or needs. (Hypertext is a step forward, if you will, on the notion of interface, abstract those borders, within a computer program, allowing the orderly coexistence of dissimilar files.) It is not irrelevant to consider the web as a giant hypertext. In the first instance, from the website of the CERN, Lee and his colleagues tried to keep a list of suppliers and available information.

To explore the web-process which, in English, is called web crawling or web spidering, "each developed its own search engine technology, their own programs. The "logic" by which a crawler captures and discriminates information depends on the algorithms with which it was designed. The term comes from the mathematical algorithm and means something like a sequence of instructions, specifically, in computing, an algorithm is a kind of minimum unit of programming, an equation that indicates the steps to solve a problem. At first, walked crawlers only the hunt for metatags that every website had coded in HyperText Markup Language (an acronym that recognizes all internet: HTML). There, in the HTML, in square brackets included a technical description, brief and concise web site content. And if the metatags said that in that corner of the web, there was an unprecedented picture of Napoleon Bonaparte, in Acapulco, at 3:00 pm on June 18, 1989, as the search engine made it part of your database .

Are the limits of automatic operation. Indeed, how can "teach" a machine to identify a lie? + The dishonesty of webmasters Soon the web site managers realized that the key lay metatags to be positioned in the top of the lists proposed by the search engines. Several studies have confirmed that the eye of the user of the site looking from top to bottom and from left to right the latter, of course, in languages that read from left to right, include us among the first ten addresses in a list increased exponentially the chances of attracting Internet users and became synonymous with success on the web.