§Grand parent of Internet: ARPANET (was funded by DARPA) in 1969
§Objective of ARPANET: to allow multiple users to send & receive information simultaneously over the same communication path
§Theory of Packet Switching was introduced
§TCP/IP protocol was introduced
-Coordinate the addresses of all computers on the Internet and the way resources/data are pass around
§TCP: provides reliable data services
§IP: provides information about how and where data should be delivered
