What does OSI model actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia. ... Layer 7 is the purpose of communicating in the first place.

The third layer of the OSI Model, ... Layer 2 is cool but Layer 3 is the one that can take you places. Layer 3, the network layer, is most commonly known as the layer where routing takes place.

The layers, and what they represent, are as follows: Layer 7: Application. The Application Layer in the OSI model is the layer that is the “closest to the end user”.

OSI-101* First, and foremost, the OSI stack is just a theoretical reference model. There is no actual OSI software. It has been around since about 1980, and it is based upon recommendations from the ...