A popular wireless Internet service rolled out in 1999 by NTT DoCoMo Inc. in Japan. It's based on a simplified form of HTML and delivers packet-based information -- such as games, e-mail and even business applications -- to handheld devices.

IEEE

Institute of Electrical and Electronics Engineers Inc. is a nonprofit, technical professional association of more than 360,000 individual members in approximately 175 countries that is an authority in technical areas such as computer engineering and telecommunications. It developed the 802.11 specifications.

MAC

Every wireless 802.11 device has its own specific Media Access Control address hard-coded into it. This unique identifier can be used to provide security for wireless networks. When a network uses a MAC table, only the 802.11 radios that have had their MAC addresses added to that network's MAC table are able to get onto the network.