Chapter . Wireless Basics

Let’s quickly run through some wireless basics to set the stage for what follows.

You might have heard of AirPort and AirPort Extreme by the name Wi-Fi, which is a certification guarantee for which The Wi-Fi Alliance trade group owns the rights and controls the testing. Wi-Fi loosely means wireless fidelity, in the sense of faithfulness: devices with Wi-Fi stamped on them work with other Wi-Fi devices, or are faithful to one another.

AirPort and Wi-Fi networks need two parts: a wireless adapter that connects inside or outside a computer or a handheld device, and a wireless hub, like an Ethernet switch, that’s known generically as an “access point” or “wireless gateway” depending on its features, but is called a “base station” ...

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