What networking equipment do you have already?
Depending on the capabilities of the router you get/have,
and assuming you have a broadband internet connection,
A] (if your router and modem are
separate pieces of equipment)
[internet enabled phone jack]
use phone wire to connect to
[modem]
connects via ethernet cable to
[wireless router]
connects via wireless signal to
- or -B] (if your router has modem capability,
therefore no separate modem required)
[internet enabled phone jack]
use phone wire to connect to
[wireless router with modem capability]
connects via wireless signal to
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A couple of definitions for your reference:
ethernet cable - a cord that is similar to your average phone cord, but the ends are about twice as wide as those that would fit in a modular phone jack. used for connecting ethernet hardware.
ISP - internet service provider, British Telecom and Verizon are a couple of examples. They often provide a modem or modem/router to their customers.
modem - a piece of equipment that dials-in to your ISP and then provides the signal
wireless adapter - a piece of equipment usually built into computers that receives and sends wireless signals. some may be attached to their computers via other means, such as USB.
Hope it helps a little.