Wi-Fi is the trade name for the popular wireless technology used in home networks, mobile phones, video games and other electronic devices that require some form of wireless networking capability.
Wi-Fi technologies are supported by nearly every modern personal computer operating system, most advanced game consoles and laptops, and many printers and other peripherals.
The purpose of Wi-Fi is to provide wireless access to digital content. This content may include applications, audio and visual media, internet connectivity, or other data. Wi-Fi generally makes access to information easier, as it can eliminate some of the physical restrainsts of wiring.
In addition to restricted use in homes and offices, Wi-Fi can make access publicly available at Wi-Fi hotspots provided either free of charge or to subscribers to various providers. Organizations and businesses such as airports, hotels and restaurants often provide free hotspot to attract or assist clients.
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Wi-Fi also allows connectivity in peer-to-peer (wireless ad-hoc network) mode, which enables devices to connect directly with each other. This connectivity mode can prove useful in consumer electronics and gaming applications.
Wi-Fi allows local area networks (LAN) to be deployed without cabling for client devices, typically reducing the costs of network deployment and expansion. Spaces where cables cannot be run, such as outdoor areas and historical buildings, can host wireless LANs areas. As of now, Wi-Fi technology had spread widely within business and industrial sites.