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ARPANET Adopted TCP/IP Protocol on January 1, 1983, Laying Foundation for Modern Internet

By

barishnamazov

5mo ago· 3 min readenNews

Summary

The article commemorates the historic transition of ARPANET from the Network Control Program (NCP) to TCP/IP protocol on January 1, 1983, which became the foundation of the modern Internet. It details how this standardization allowed previously incompatible networks to communicate, enabling the growth of what would become the global Internet. The piece explains the technical significance of TCP/IP's layered architecture and how this academic research network evolved into the Internet we know today.

Key quotes

· 4 pulled
On January 1, 1983, ARPANET system architects initiated the cutover from the existing Network Control Program (NCP) with the Transmission Control Protocol/Internet Protocol (TCP/IP) on all hosts.
TCP/IP became the foundation of the Internet as we know it.
Before this momentous decision, networks would use a mix of incompatible protocols.
The transition would be complete by June 1983. By 1984, over 100 universities and research facilities in the United States and Europe were connected using what is now regarded as the universal standard for global networking.
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How an academic research network became the Internet.

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