Device, such as notebook computers and Personal Digital Assistant (PDAs) can access information on a network with a wireless network without being physically connected to the network. A wireless network eliminates the cables that connect devices on a traditional network. Wireless networks allow mobile devices to remain connected to the network when they are moved from one area to another.
Radio Signals: Most wireless networks use radio signals to transmit information between devices. These networks usually operate on radio channels between 800 megahertz and 1.9 gigahertz. Information on a wireless network can be transferred at speeds of up to 11 Mbps.
Radio Transceivers: A radio transceiver is used to exchange information on a network. Some wireless devices have transceiver connected to the outside of the device, while other wireless devices have built-in transceivers.