802.11g is increasingly used for this purpose, and dual-band systems capable of handling 802.11b and 802.11g are available.
802.11n is an emerging standard for increasing the speed and capacity of wireless networking, and will transmit at more than 100 Mbps.
In most Wi-Fi communications, wireless devices communicate with a wired LAN using access points.
An access point is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.
Laptop PCs now come equipped with chips to receive Wi-Fi signals while older models may need
an add-in wireless network interface card.