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) …Continue reading "What is the OSI model?"