Today, for a variety of reasons (all coming down to some sort of cost) the star topology is where most network installations in an office occur.
All the wiring comes to a central point, not unlike the spokes of a wagon wheel.
When data needs to get from one spoke to another, it heads off to the center and back out.
The good news about a star topology is if a PC goes down, it doesn't affect the other computers, like the Bus does.
The bad news is there is a single point of failure at that center point that can kill the ability of every PC to send data on the network.
With the physical wiring schemes explained, a brief tour of how the data actually gets on the wires is the next topic.
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