Wireless networking is still one of the hottest home technologies, and the ability to dispense with a hard-wired setup and freely roam is a powerful reason to go wireless. The wireless router is usually the starting point, as it provides both Internet sharing and wireless networking from a single device. Buying a router used to be easy; you just ordered the lowest-cost IEEE 802.11g model and then hooked it up.
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Source: Sharky Extreme