The acronym for wireless fidelity is Wi-Fi. It is simply a LAN that uses high frequency radio signals for data transmission and reception. The distance to which this transmission and reception can happen is around 200 feet. You can compare this to that of the walkie-talkie. The walkie-talkie operates in a frequency of 49 MHz whereas in Wi-Fi the operating frequency is 5 MHz. The data transfer in walkie-talkie is just 1000 bits per second and in Wi-Fi it is 54 Mega bits per second. Such a high data transfer in Wi-Fi enables it to transfer video and applications which rely on more data.
Wi-Fi helps you to communicate without wires and cables. In a Wi-Fi node the switching between frequencies happen fast and automatically which reduces the interference. In Wi-Fi equipment the digital data is transferred efficiently than a walkie-talkie. The digital data in Wi-Fi (i.e. 1s and 0s) are transferred to radio waves for transmission. In a walkie-talkie the sound waves are transferred to radio waves.
Technorati Tags: WiFi, Bluetooth, Wireless Protocol