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eolas/zk/Internet_fundamentals.md
thomasabishop 592ed78b78 Autosave: 2024-08-03 09:00:03
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Internet_fundamentals
networks
Saturday, August 03, 2024

Internet fundamentals

The internet is a network of networks. A globally connected set of computer networks that all use a suite of common protocols.

The protocols governing the communication between networks on the internet are specified in the Internet Protocol Suite.

This combines two protocols:

  • TCP
    • The Transmission Control Protocol
  • IP
    • The Internet Protocol

Hence the Internet Protocol Suite is also known as "TCP/IP".

The TCP/IP is a network stack comprising four layers. From the top:

TCP/IP stack diagram

The Link Layer ... The Internet Layer ... The Transport Layer ... The Application Layer ...