Can someone explain me the difference between those three devices?
In: 1512
Imagine these devices as an office phone system:
**Hub:** Everyone is in the same room, and the only way to talk just speak out loud so everyone else can hear.
**Switch:** Everyone is in their own office with a phone on their desk that is assigned an extension. You can reach anyone in the building by extension, but you can’t call outside the office.
**Router:** Just like the switch, but the router also has a connection to the global telephone network, so you can call people outside the office as well. The router makes sure that calls to extensions stay inside the office, and calls to phones outside the office go out over the outside line.
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