Today, practically every worker needs a network connection, but you can't have copper cabling everywhere. Wireless LANs let you extend your network to every square inch or your building or residence without running cables to difficult or impossible areas to reach. The IEEE standard of 802.11b and a new manufacturing commitment have created new products that break the speed barrier, guanrantee interoperability among vendors, and carry lower prices.
Wireless network is now a practical way to extend the wired network.
It contains a 10Base-T port that connects to the LAN's hub or switch, communications and encryption software, and a radio receiver. The access point basically performs the same functions as a wired network hub. The client LAN adapter is typically either a PC Card that fits into a laptop or other portable device or an ISA and PCI card. The client adapter has a small nublike integrated antenna or an attachment to connect to a more powerful antenna if necessary to boost the signals. In operation, the client adapter uses its radio transceiver to find an access point and negotiate a connection speed appropriate to the signal quality.