A local router which is attached to a Local Area Network or Wireless Local Area Network acts as the local postman by determining the physical MAC Address of a device so that it can deliver packets to the correct computer device.
In order to connect to the Internet we normally need a modem that runs the same protocols as the Service Provider Access Network. In most cases we will be using either an ADSL Modem or a Cable modem depending on who our service provider is.…
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