The internet sometimes called simply "the net, " is a worldwide system of computer networks- a network of networks in which user at any one computer can, if they have permission, get information from any other computer (and sometime talk directly to user at other computers). The U.S. department of Defence laid the foundation of the internet roughly 30 year ago with the network called Arpanet. But the general public didn't use the internet much until after the development of the world wide web in the early 1990.
In 1957, the US government formed the advanced research project agency (ARPA) a segment of the development of the defense charged with ensuring US leadership in Science and Technology with military application. In 1969, ARPA established ARPANET, the forerunner of the internet.
ARPANET was a network that connected major computer at the University of California at Los ANGEL'S, the University of California at Santa BARBARA, Stanford Research INSTITUTE, and the University of UTAH. Within a couple of YEARS, several other educational and Research institution join the network.
In response to the threat of nuclear attack, ARPANET was designed to allow continued communication if one or more sites were destroyed. Unlike today, when mellions of people have access to internet from home, work, or the public library, ARPANET served only computer professionals, engineers, scientist who knew their way around its Complex working.
