
IEEE 802.11b-1999 or 802.11b, is an amendment to the IEEE 802.11 specification that extended throughput up to 11 Mbit/s using the same 2.4 GHz band. This specification under the marketing name of Wi-Fi has been implemented all over the world. The amendment has been incorporated into the published IEEE 802.11-2007 standard. 802.11 is a set of IEEE ....
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http://www.majorgeeks.com/glossary.php?id=0

Standard defining wireless networking that operates on the 2.4Ghz band at the speed of 11Mbps.
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http://www.superglossary.com/Glossary/Technology/Computers/

A specification for a wireless LAN that operates in the 2.4GHz range and provides a data transmission rate of 11Mbps using spread spectrum technology. This specification was known as Wi-Fi but the term now applies to 802a and 802g as well.
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