Internet History

1961

Kleinrock; Developed queueing theory showing packetswitching efficiency.

1964

Baran; Proposed packet switching for military communication.

1967

ARPAnet; Conceived First plan for a packet switched network.

1969

First ARPAnet Node Operational connection established.

1972

ARPAnet Demo Introduced email; 15 nodes.

1970

ALOHAnet; First wireless packet network in Hawaii.

1974

Cerf and Kahn; Developed the architecture for interconnecting networks (Internet).

1976

Ethernet at Xerox PARC Birth of local area networking.

1979

ARPAnet Expansion Reached 200 nodes.

1983

TCP/IP Deployment Adopted as standard protocol suite.

1983

DNS Defined System for name to IP translation

1985

FTP Protocol Defined File transfer standard introduced.

1988

TCP Congestion Control Mechanisms developed for reliable flow.

Early 1990s

ARPAnet decommissioned; Web and HTML/HTTP introduced by Tim Berners

1994

Mosaic / Netscape First graphical web browsers released.

Late 1990s–2000s Commercialization of the Internet; rise of email, P2P, IM, and e

Commercialization of the Internet; rise of email, P2P, IM, and ecommerce.

2005

Present Broadband, 4G/5G, SDN, cloud computing, and massive Internet scale.

2023

Over 15 billion devices connected worldwide.