History of the Internet

Main

USSR launches Sputnik, first artificial earth satellite

1957

The start of global telecommunications.
Satellites play an important role in transmitting all sorts of data today.
US forms the Advanced Research Projects Agency (ARPA) within the Department of Defense (DoD) to establish US lead in science and technology applicable to the military.

Packet-switching (PS) networks developed

1962 - 1968

As we will see later the Internet relies on packets to transfer data.
The origin is military : for utmost security in transferring information of networks (no single outage point).
Data is split into tiny packets that may take different routes to a destination.
Hard to eavesdrop on messages.
More than one route available -- if one route goes down another may be followed.
Networks can withstand large scale destruction (Nuclear attack - This was the time of the Cold War).

Birth of Internet

1969

First node at UCLA (Los Angeles) closely followed by nodes at Stanford Research Institute, UCSB (Santa Barbara) and U of Utah (4 Nodes).

People communicate over a network

1971

Computers can connect more freely and easily

1972

Global Networking becomes a reality

1973

Packets become mode of transfer

1974

Networking comes to many -- Queen Elizabeth sends out an e-mail.

1976

E-mail takes off, Internet becomes a reality

1977

News Groups born

1979

Internet gets bigger

1983

Commercialisation of Internet Born

1987

Number of hosts 28,000.