When referring to the orientation of an antenna the Y-Axis takes on the same meaning that it does in Cartesian mathematics. Aligning an antenna involves rotating the antenna around the X- Y- and Z-axis. Rotation around the X-Axis implies that the antenna is being aimed up or down. Rotation around the Y-Axis implies that the antenna is being turned left or right. Rotation around the Z-Axis implies that the antenna is being rotated clockwise or counter-clockwise.

The original name of the Sprint business unit planning to bring 802.16 WiMAX into the market is the "Xohm" division of Sprint. Xohm was merged with Clearwire. Sprint owns 51% of the firm, with ex-Clearwire shareholders owning 27%, and a consortium of Comcast, Time Warner, Intel, Google, and Bright House owning the balance. The new firm was named "Clearwire" in 2008.

"eXtensible Markup Language" XML was developed by the World Wide Web Consortium (W3C) as a meta-language to compliment and potentially replace HTML for web page presentation. HTML pre-defines data tags whereas XML extend a data format by allowing a programmer to applying his or her own uniquely defined tags. Since the tag structure in the case of XML enables the computer to automatically analyze data content, building EC (electronic commerce) and EDI (electronic data interchange) systems is facilitated.