OSI reference model
**OSI reference model**
What is OSI reference model?
The OSI (Open Systems Interconnection) reference model is a conceptual framework used to describe the functions of a networking system. It characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology. It divides network communication into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. Each layer performs specific functions to enable communication between applications on different systems. It's commonly used as a teaching tool and a reference point for understanding network protocols and architectures.
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