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

On the bottom was the physical layer, next came the “logical” layer or protocols, and on top sat the applications layer. This is good, I thought, something I could use for the course I was teaching at ...

A tutorial on the Open Systems Interconnection (OSI) networking reference model plus tips on how to memorize the seven layers.

If you have anything to do with networked AV and you're not well-versed in the OSI model, we've got you covered. You will learn the fundamental ideas around getting data from host A to host B over a ...

According to the OSI Model, the session layer is where connections are established, managed, and torn down. For connection-oriented network protocols, understanding how the session layer works ...

There are two key points to make about the OSI model. First, the OSI model is just that, a model. Its use is not mandated for networking, yet most protocols and systems adhere to it quite closely.

I like to think of the transport layer as the layer of the OSI Model that enables more interesting traffic. While we network engineers may love a lot of the simpler uses of the IP protocol and ...