This paper explains the 2 popular reference models: OSI reference model and TCP/IP model, by comparing the functionality of each layer in both models.

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 ...

What does OSI model actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

The Physical Layer: Understanding the OSI Model Understanding the OSI Model Josh Stephens is Head Geek and VP of Technology at SolarWinds, an IT management software company based in Austin, Texas.