Theres a bunch. But the most common are:
802.11a - operates at 5Ghz and transmits data at 54Mbps
802.11b- operates at 2.4Ghz and tranmits data at 11Mpbs
802.11g- operates at 2.4Ghz and transmits at 54Mbps.
802.11n is the newest, it operates at 2.4Ghz but transmits at 140Mbps. These are now availble on MACINTOSH Lights...and they have the new DDR3 RAM also. They are kickin.
The IEEE 802x committees primarily focus on developing and maintaining standards for local area networks (LANs) and metropolitan area networks (MANs), particularly those related to Ethernet and wireless networking technologies. These committees ensure interoperability, reliability, and performance across various networking devices and protocols. By creating standardized specifications, they facilitate the growth of networking technologies and promote innovation in communication systems.
Maybe you should read your textbook instead of fishing for others to answer your homework questions. Good luck cheater.