Arquivo para May 31st, 2013
The network, the internet and the Web
31
May
Were years of the Cold War, the ongoing tension between the communist world led by the Soviet Union and the capitalist world led by the U.S., and the first idea of the electronic network was not having a central command so that he could keep the links in the event of destruction of some points by a war between the two blocks in tension.
So the network should be mounted without a central command, a system in which all points (network nodes) had autonomy and where the data transmitted in any direction or order not to lose the contents, the project was outlined ARPAnet Paul Baran, designed by Agency Advanced Research Projects (Advanced Research Projects Agency) of the U.S. government.
But the network went out of military control in 1970 and crisscrossed four U.S. universities, but in the next 4 years the number grew to 40. The exchange of messages and files becomes possible, and universities launch several projects, among them, the Project Gutenberg Michael Hart with the publication of books, the University of Illinois in 1971.
That same year, it created the first commercial network in the U.S., Telenet, as an access service.
The name has been used only in Internet 1982. In 1983, Vinton Cerf and Khan create the network communication protocol, TCP / IP (Transmission Control Protocol / Internet Protocol), the common basis of instructions and codes used by all computers connected to the network today.
But the Web as an application protocol only arrived in 1991, with the hypertext system, prophesied by Ted Nelson years before, and now implemented by Tim Berners-Lee, came the Web, the World Wide Web
Thus the metaphor of the network becomes years later an electronic means of communication the internet, and in the 90s a mode of communication between billion person who is the Web
Social networks were only possible within this universe of hypertext with the Internet as a medium.
