The world wide web and internet

History

The Advanced Research Projects Agency (ARPA) created by the US in 1958 as a reply to the USSR’s launching of the Sputnik, led to creation of a department called the Information Processing Technology Office (IPTO) which started the Semi Automatic Ground Environment (SAGE) that linked all the radar systems of US together. With tremendous research happening across the world, the University of California in Los Angeles (UCLA) got the ARPANET, a smaller version of the Internet in 1969. Since then Internet has taken huge strides in terms of technology and connectivity to reach its current position. In 1978, the International Packet Switched Service (IPSS) was created in Europe by the British Post Office in collaboration with Tymnet & Western Union International and this network slowly spread its wings to the US and Australia. In 1983, the first Wide Area Network (WAN) was created by the National Science Foundation (NSF) of the US called the NSFnet. All these sub-networks merged together post 1985 with new definitions of the Transfer Control Protocols of the Internet Protocol (TCP/IP) for optimization of resources.

The Web was invented by Sir Tim Berners Lee. In March 1989, Tim Berners-Lee wrote aproposal that described the Web as an elaborate information management system. With help from Robert Cailliau, he published a more formal proposal for the World Wide Web on November 12, 1990. By Christmas 1990, Berners-Lee had built all the tools necessary for a working Web: the first web browser (which was a web editor as well), the first web server, and the first Web pages which described the project itself. On August 6, 1991, he posted a short summary of the World Wide Web project on the alt.hypertext newsgroup. This date also marked the debut of the Web as a publicly available service on the Internet.

Berners-Lee's breakthrough was to marry hypertext to the Internet. In his book Weaving The Web, he explains that he had repeatedly suggested that a marriage between the two technologies was possible to members of both technical communities, but when no one took up his invitation, he finally tackled the project himself. In the process, he developed a system of globally unique identifiers for resources on the Web and elsewhere: the Uniform Resource Identifier.

The World Wide Web had a number of differences from other hypertext systems that were then available. The Web required only unidirectional links rather than bidirectional ones. This made it possible for someone to link to another resource without action by the owner of that resource. It also significantly reduced the difficulty of implementing web servers and browsers (in comparison to earlier systems), but in turn presented the chronic problem of link rot. Unlike predecessors such asHyperCard, the World Wide Web was non-proprietary, making it possible to develop servers and clients independently and to add extensions without licensing restrictions.