OSI model

The Open Systems Interconnection Reference Model (OSI Model or OSI Reference Model for short) is a layered abstract description for communications and computer network protocol design, developed as part of the Open Systems Interconnect initiative. It is also called the OSI seven layers model.

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The OSI model divides the functions of a protocol into a series of layers. Each layer has the property that it only uses the functions of the layer below, and only exports functionality to the layer above. A system that implements protocol behavior consisting of a series of these layers is known as a 'protocol stack' or 'stack'. Protocol stacks can be implemented either in hardware or software, or a mixture of both. Typically, only the lower layers are implemented in hardware, with the higher layers being implemented in software.

Network protocol: REDIRECT Protocol (computing)...

Open Systems Interconnect: redirect Open Systems Interconnection...

OSI model related Images and Photos (experimental)

Model A 1929	Top Model	Ford Model T	Ford Model T Model Kit
Model Naomi Campbell	Model Elle Macpherson	Molecular Model Kit	Pteranodon Model Kit
Model c.1982 (Teal and Orange)	The Model 1839	Moon Bus Model Kit	Model of a Frankish Warrior