Advance Hardware
What is a hub?
A hub is a generic term used to describe a central connection point for computers on a network. The basic function performed by a hub is to receive signals from one computer and transmit them on to other computers.
A hub can be active or passive. An active hub acts as a repeater; it regenerates and sends out a stronger signal. A passive hub is basically just a junction box; it splits incoming signals for transmission across the network.
The hub is the center of a star topology and allow computers to be added or moved on the network with relatively ease.