Bluetooth Is More Than a Wireless Communication Protocol
As you can see, Bluetooth is not just a protocol used to exchange data between devices. The use of profiles further delineates the different kinds of applications that can be used with Bluetooth radio transmitters and thus makes it easier for manufacturers to produce portable devices that have applications built in and ready for use. You can contrast this with Wi-Fi, which simply provides the communications link just as traditional LAN or WAN protocols provide. Bluetooth provides both the radio frequency transport mechanisms and application-specific solutions that make interoperability between devices easy to implement.
Chapter 23. Security and Other Wireless Technologies
SOME OF THE MAIN TOPICS IN THIS CHAPTER ARE
Although previous chapters on wireless technology were devoted to examining wireless devices that are currently available, this chapter examines additional types of wireless uses and wireless security. Essentially, this chapter wraps up the topic of wireless networking and communications.
Instant Messaging and Consumer Devices
If you ask a typical consumer about wireless communications, you might hear about Wi-Fi or wireless Ethernet, but it's just as likely that
These are some of the more popular PDA and smartphone
Comparing Mobile Information Devices
Given the wide variety of wireless mobile devices on the market and the different operating systems available for them, it can be confusing to determine the exact boundaries between types of wireless mobile devices.
Generally, PDAs have the following features:
PDAs with integrated telephones typically add these features:
Some PDAs and PDAs with integrated telephones include a built-in mini-keyboard or a portable external keyboard.
portable media center
is optimized for digital music, digital video, and still picture playback. It usually includes the capability to act as a personal video recorder (PVR). However, it lacks the capability to work with other types of information, and is not designed to connect
With the feature sets available on PDAs with integrated phones and smartphones, the market for classic PDAs which lack telephone and integrated wireless data support is bleak. Sony discontinued its CLIE series of PDAs in the summer of 2004, and PalmOS has lost significant ground to Windows Mobile-based and BlackBerry devices. The future of PDAs is a wireless one.
RIM's BlackBerry product line is the most popular PDA product family in the world. Their unique combination of smartphone, wireless PDA with keyboard, wireless web surfing, and wireless text messaging makes them extremely popular with corporate and government users. BlackBerry devices are so powerful that users have a hard time
Part of the power of BlackBerry comes from its level of email integration. Not only do BlackBerry devices work with existing personal and business email accounts, but BlackBerry also provides management and control for BlackBerry devices through its Enterprise Server product line for Microsoft Exchange, IBM Lotus Domino, and Novell
The BlackBerry Alliance Program provides access to a wide variety of third-party business applications for BlackBerry, including many vertical market solutions. The Handago Store for BlackBerry ( www.handango.com/blackberry ) provides access to individual productivity, communications, entertainment, and education applications.
To learn more about BlackBerry, including comparisons of the BlackBerry devices, see the BlackBerry website at
. BlackBerry devices are available from most major wireless communications vendors, including Sprint and Nextel (
), Verizon Wireless (