Networking Explained, 2nd Edition

Chapter 18: Wireless Networking 539

working products, including Web-enabled phones that combine cellular telephone and

Internet technology, wireless pagers, and personal digital assistants (PDAs). These wire-

less Internet devices have brought the concept of wireless communications and network-

ing to the forefront, providing users with continued and untethered access to the Web, their

e-mail, and instant messaging.

3. From my perspective, wireless communications is like magic. After reading vari-

ous chapters in this book, though, I now realize that there is probably a tremen-

dous amount of behind-the-scenes technology that creates this magic.