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Computer Science · Computer Networks

The OSI & TCP/IP Models

A topic within Computer Networks, itself one of 11 topics in that field and part of Computer Science.

Reading on The OSI & TCP/IP Models

4

A way in

  1. Start here

    Assumes you know the vocabulary.

    Internet Protocol

    Jon Postel · 1981

    Specifies a connectionless, best-effort packet delivery service and pushes reliability entirely to the endpoints, the decision that let heterogeneous…

    +2 more at this level

  2. Go deeper

    Primary sources and full treatments.

    A Protocol for Packet Network Intercommunication

    Vinton G. Cerf & Robert E. Kahn · 1974

    Proposes that networks of different technologies interconnect by agreeing only on how gateways pass packets between them, the design that became…

4 works

Report1981

Internet Protocol

Jon Postel

Specifies a connectionless, best-effort packet delivery service and pushes reliability entirely to the endpoints, the decision that let heterogeneous networks interconnect without central coordination.

link checked 17 Sept 2026
Report1981

Transmission Control Protocol

Jon Postel

Specifies a reliable byte stream built on top of IP's unreliable datagrams using sequence numbers, acknowledgements and a sliding window, and remains the base that every later congestion-control scheme modifies rather than replaces.

link checked 17 Sept 2026

Other topics in Computer Networks