A hub, a switch, a router. They are all what you have described. A hub is a central point of a computer network. A switch is a series of ethernet ports with no wireless functionality. A router can have both wireless and wired capabilities, but can also have a modem built in.
It is called a Star topology
Bus
Star Topology
Each point of a polygon at which two sides intersect is called VERTEX
Each point is called a vertex.
bus topology
This point is called critical point.
A star network.
entente and central powers
is called the trough http://facstaff.gpc.edu/~pgore/geology/geo101/wavediagram.gif
They each have a central point of view -- CNN has a left leaning, Fox, a right or republican slant.
Multi point fuel injection is the latest way to deliver fuel to the cylinder while sticking to ever increasingly hard emissions tests. A multipoint fuel injection system typically delivers fuel to each cylinder individually. (each cylinder has it's own injector) Central port fuel injection and carburetion delivered fuel to a central point.