Learn the fundamentals of the OSI model for computer networking in 100 seconds.

Conceived in the 1970s when computer networking was taking off, two separate models were merged in 1983 and published in 1984 to create the OSI model that most people are familiar with today.

The third layer of the OSI Model, the network layer ... the car from one place to another is all in the vehicle. With computer networks, all of the intelligence is at the intersections ...