5–4 Hardware and Software Guide
Wireless (Select Models Only)
Computers with 802.11 wireless devices may support 1 or more
of 3 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 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. 802.11a is not compatible with
802.11b and 802.11g.
For information on identifying the type of wireless device in your
computer, refer to “Identifying an 802.11 Wireless Device.”