ARPANET

     The ARPANET was not the only network of computers in the 1970’s, but it was the biggest and most sophisticated one in the world at the time. It established the first host to host network connection that is the foundation concept of today's Internet. Before ARPANET there was The Advanced Research Projects Agency or ARPA ( See ARPA).  In 1966, ARPA began its computer network ARPANET (cs.utexas.edu). In 1969, ARPANET’s first message was sent from UCLA to Stanford. The message was “LOGIN,” but the system crashed and the computer at Stanford only received the first two letters (History.com). An hour later the whole message was successfully sent. This was the first “node” of the ARPANET. A node is the connection point between computers. By the end of 1969, only four computers were connected to the ARPANET. In 1989, twenty years after the ARPANET was created, it was shutdown; however the Internet revolution that it started was moving quickly forward (cs.utexas.edu).


Picture
The image to the left shows ARPANET'S first four "nodes" at the end of 1969 connecting UCLA, Stanford, The University of California in Santa Barbara, and the University of Utah.  Photo from personalpages.manchester.ac.uk