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Chapter 1. ✓ Start Here > Taking a Look at Mobile Wireless Networks

Taking a Look at Mobile Wireless Networks

All BlackBerry devices, mobile phones, and many handheld computers are generally referred to as wireless devices, which simply means they can transmit and receive information over invisible radio waves without the aid of wires. Wireless devices have been around for a while, as evidenced by garage door openers, television remote controls, two-way radios, and cordless phones. What primarily distinguishes these devices from BlackBerry devices is the range of the wireless communication being carried out. More specifically, BlackBerry devices communicate over a wide area network (WAN) that spans many miles, whereas the other devices mentioned are limited to a range more easily measured in tens or hundreds of feet.

▸ NOTE

Such shorter range wireless networks typically fall under the category of personal area networks (PANs) or local area networks (LANs), depending on their specific wireless range.



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