1. When referring to a network, a hub is the most basic networking device that connects multiple computers or other network devices together. Unlike a network switch or router, a network hub has no routing tables or intelligence on where to send information and broadcasts
all network data across each connection. Most hubs can detect basic
network errors such as collisions, but having all information broadcast
to multiple ports can be a security risk and cause bottlenecks. In the
past network hubs were popular because they were cheaper than a switch
and router. Today, switches do not cost much more than a hub, and are a
much better solution for any network.
Related pages
- Difference between a network hub, switch, and router?
- Computer network and network card help and support.
2.
In general, a hub refers to a hardware device that enables multiple
devices or connections to be connected to a computer. Another example
besides the one given above is a USB hub, which allows dozens of USB devices
to be connected to one computer, even though that computer may only
have a few USB connections. The picture is an example of a USB hub.
Note: The root hub is your computer and the first USB hub.
