What is the OSI model?

The OSI (Open Systems Interconnection) model, is a conceptual model of computer-to-computer communications, over a network.  It was defined was defined in ISO/IEC 7498-1, by the International Organization for Standardization (ISO) in 1984.  The model is not meant to specify exactly what processes occur.  Instead, it describes them. The OSI model, has seven layers: (1) Physical, (2) …

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