The foundation of internet was laid in 1969 when the Department of Defence (DOD) of United State of America called ARPANET
To connect various Universities and Defence Agency.These network was used for exchainging data and messages from playing games,sharing views and ideas on any topic among engineer and students. The Main objective of ARPANET has develop a network that could combine to function effciently event during a necular effect.
Later on 1980, Another Agency The National Science Foundation(NSF) created a new network based on ARPANET called NSFNET which turned out more efficient and capable we can connect by super computer through NSFNET which was situated in university.
We you have any doubt let me know :)