This term was created by the Wi-Fi Alliance to refer to wireless LAN products based on the IEEE802.11a specification that operates in the 5GHz radio frequency band. However, the use of the term has been officially discontinued to avoid confusion. All 802.11-based products, whether 802.11a, 802.11b or otherwise, are now supposed to be generically referred to as Wi-Fi.
Wireless - FAQ
Northwestern University Information Technology's wireless network
frequently asked questions. Provides information on Macintosh and
Windows.