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

Thanks for your comments on my first EtherGeek post on understanding the OSI Model. I especially enjoyed learning new ways to remember the OSI Model; for example: Please Do Not Throw Stale Pizza ...

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. Subscribe to the Developer Insider Newsletter ...