The official definition of the OSI model goes something like: The Open Systems Interconnection model (OSI model) is a conceptual model developed by the International Organization for Standardization ...

The open systems interconnection model layered approach, shown in this table, allows each subordinate, interdependent layer to provide services to the next higher layer as transactions are converted ...

The PHY is a key component of the Open Systems Interconnection (OSI) model, which contains seven abstraction layers for connecting different systems and defining how they communicate with each other ...