2Wireless, local area network, and modem
Using wireless devices
Wireless technology transfers data across radio waves instead of wires. The computer might be equipped with one or more of the following wireless devices:
●Wireless local area network (WLAN)
●Bluetooth device (select models
Computers with WLAN devices support one or more of the following IEEE industry standards:
●802.11b, the first popular standard, supports data rates of up to 11 Mbps and operates at a frequency of 2.4 GHz.
●802.11g supports data rates of up to 54 Mbps and operates at a frequency of 2.4 GHz. An 802.11g WLAN device is backward compatible with 802.11b devices, so that they can operate on the same network.
●802.11a supports data rates of up to 54 Mbps and operates at a frequency of 5 GHz.
NOTE: 802.11a is not compatible with 802.11b and 802.11g.
●802.11n supports data rates of up to 450 Mbps and might operate at 2.4 GHz or 5 GHz, making it backward compatible with 802.11a, b, and g.
For more information on wireless technology, see the information and website links provided in Help and Support.
14 Chapter 2 Wireless, local area network, and modem