TAILIEUCHUNG - Webmaster's Guide to the Wireless Internet part 5

Webmaster's Guide to the Wireless Internet part 5. The Webmaster’s Guide to the Wireless Internet provides the Wireless Webmaster with all of the tools necessary to build the next generation Internet. Packed with the essential information they need to design, develop, and secure robust, e-commerce enabled wireless Web sites. This book is written for advanced Webmasters who are experienced with conventional Web site design and are now faced with the challenge of creating sites that fit on the display of a Web enabled phone or PDA | 12 Chapter 1 Moving from the Web to Wireless warehouses where wireless PDA-equipped workers can roam freely about the warehouse while maintaining a high-bandwidth connection to inventory systems. The system has recently become more popular with home users wishing to create a wireless home network there is no need to drill holes in walls floors and baseboards and no costly Ethernet cable to run. It is also suitable for older office buildings where cable cannot be run and is popular for setting up ad hoc networks at events and tradeshows. Paired with the broadband digital subscriber line DSL and cable modem services now available allows you to lounge in your garden or on the deck and surf the Internet at high speeds. Several companies have adapted the system to provide wireless coverage in areas where large numbers of business travelers typically congregate such as airport lounges and the larger hotel chains. Café chains are also looking at this as a way to encourage business users to frequent their establishments the Starbucks coffee chain recently installed wireless access in almost all of their outlets. The next version of this standard will up speeds to the 50 Mbps range. Bluetooth is another short-range wireless standard gaining ground recently. Bluetooth is quite a bit slower than and has a shorter operational range about 10 meters 39 feet . It uses the same unlicensed area of the radio spectrum as GHz and offers data speeds of up to 1 Mbps. Originally envisioned as a cable replacement technology the first commercial product was a wireless mobile phone headset from Ericsson Bluetooth has expanded to a complete networking standard. Bluetooth nodes are each capable of operating as either a client or a server. In a PDA setting one scenario is that you would walk into the lobby of a major hotel or an airline s frequent-flyer lounge. The Bluetooth chip in your PDA would automatically discover the Bluetooth network negotiate your .

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