The Building Blocks of a Network: Hubs, Switches, and Routers

Get to know the fundamental hardware that makes a network tick. This video clearly explains the difference between a hub, a switch, and a router, showing how network technology evolved from simple devices that broadcast everything everywhere (hubs) to intelligent devices that direct traffic precisely where it needs to go (switches and routers). You'll learn not just what these devices do, but also where they operate in the OSI model, giving you a foundational understanding of network architecture. This knowledge is the first step for anyone looking to build, manage, or defend a network.