Computer networks and their physical connections are the fundamentals to getting to know in-depth how all network services and abstractions work. There are different types of network devices and although they might seem similar, they are still very different in what they do. In this tutorial, we will get to know in-depth the three most used network devices and learn about their functionalities and their differences.

Hubs, Switches, and Routers are all computer networking devices with varying capabilities. Essentially, all of these devices connect computers, or networks between each other, and each has a few connectors called ports, into which the cables are plugged to make the connection. However, we could say that the most important difference between those is intelligence, and in the following sections, we are going to see why.