ARPANET started by the US Dept. of Defense for research.It is the original basis for what now forms the Internet.It was opened to non-military users later in the 1970s. The first international connections to ARPANET are established. The TCP/IP Protocol established,and the "Internet" is formed as a connected set of networks using TCP/IP. DNS(Domain Name Server) introduced to the Internet, with then consisted of about 1000 hosts. World Wide Web,invented by Tim Berners-Lee who saw the ne