WiFi is an community standard technology that allows for the enabled electronic technology to exchange data wirelessly.

This is by using radio waves from a hookup over a computer network and then can distribute connections to high-speed Internet connections. The WiFi Alliance identifies WiFi as any wireless local area network (WLAN) products that are based on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards". Even so, as almost 100% of modern WLAN s are adopting these standards. Hence the term Wi-Fi is used in general words as a term for WLAN.
A device that can use Wi-Fi such as a personal computer, videogame console, mobile phone ,android tablet, digital audio player, smart tv ,games console, I-phone,I-pad, separate screen and many many more products can attach to a network resource such as the Internet via a wireless network access point.
Such an access point can have a range of about 20 meters indoors and a amplified range outdoors. There are different methods and hardware to amplify and spread the signals and that configuration is becoming an industry in itself.
Hotspot coverage can constitute an area as small as a single room with walls that block radio waves or as large as many square miles this can be achieved by using multiple related access points and now usage of the cloud internet can be used to take on these points.
WiFi has been trademarked by the WiFi Alliance and the image name for appliances using the IEEE 802.11 group of standards. Only WiFi products that complete Wi-Fi Alliance interoperability certification testing with success may use the WiFi CERTIFIED status and trademark.
Wi-Fi has had a checkered protection history. The encryption system of signals is perpetually evolving with usage, Wired Equivalent Privacy WEP has proved easy to break.
So much higher security protocols, WPA and WPA2, have been bundled . The WiFi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist certain security breaches this again due to usage is a critical element for some consumers of WiFi
On the internet access With WiFi
A WiFi enabled device can get hooked up to the Internet when within range of a wireless network. The coverage of one or more access points called Wifi hotspots can reach out from an area as small as a few rooms to as large as many square miles.
Coverage in the greater area may require a group of access points with overlapping coverage. Outdoor public Wi-Fi technology has been used with success in wireless mesh networks in a wide variety of cities around the world with great beneficial results
Wi-Fi provides service in private homes, high street chains cafes,bars,hotels,fast food outlets (McDonalds,Burger King Starbucks )independent businesses, as well as municipal buildings rail networks service station networks. Also in many public spaces at Wi-Fi hotspots that are set up either free of charge or commercially.
Communities and businesses and corporations, such as airports, hotels, and restaurants, often provide free-use hotspots to attract customers. Enthusiasts or authorities who wish to provide services or even to promote business in selected areas sometimes provide free Wi-Fi access.
Access Points with various routers that incorporate a digital subscriber line modem or a cable modem and a Wi-Fi access point, often set up in homes and other buildings, provide Internet access and internet working to all devices accessing them, wirelessly or via cable.
Also there are cell energized mobile routers that contain a cellular mobile Internet radio modem and WiFi access point. When subscribed to a cellular phone carrier, they allow nearby WiFi stations and devices to connect and then to access the Internet over 2G, 3G, or 4G networks. So WiFi multiplies the devices able to connect to an access point however that access point goes on the internet.

Wifi Promotion