There are three main devices that work to connect one computer to another computer. A network hub, switch, and router can all perform this function. It can sometimes be confusing when trying to figure out what device is currently being used on a computer network, without knowing what each device does. Network Hub A network hub is designed to connect computers to each other with no real understanding of what it is transferring. Typically, a network hub is used for a private network, one that does not have any connections to sources other than local computers (meaning, no Internet access). When a hub receives a packet of data from a connected device, it broadcasts that data packet to all other connected devices regardless of which one ends up being the final destination. Additionally, network bandwidth is split between all of the connected computers. So, the more computer that are connected, the less bandwidth that is available for each computer, which means slower connection
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