WIFI
Wi-Fi® is a technology that is growing in popularity around the world and which allows users to connect their computers to the internet or to each other without the need for wires and cables.
Wi-Fi® is really a synonym for a Wireless Local Area Network (WLAN). WLAN is a flexible data communication system implemented as an extension to, or as an alternative for, a wired network within a building. WLAN technology is being widely used to provide wireless internet access in public places like airports, hotels, and shopping centres but it is also widely used in the home and office to allow computers to access the internet and network with each other without the need for network cabling. To connect and communicate, WLANs use radio waves in the 2.4 and 5 GHz range to transmit and receive data over the air.