Understanding wifi and how it works!

Wi-Fi is a wireless networking protocol that allows devices to communicate without internet cords.It's technically an industry term that represents a type of wireless local area network(LAN) protocol based on the 802.11 IEEE network standard.
WI-Fi is the most popular mens of communicating data wirelessly,within a fixed location.Its a trademark of the Wi-Fi alliance,an international association of companies involved with wireless LAN technologies and products.
Note: Wi-Fi is commonly mistaken as a acronym for "wireless fidelity".its also sometimes spelled as wifi,WiFi,WIFI or Wifi, but none of these are officially approved by the Wi-Fi alliance .Wi-Fi is also used synonymously with the word "wirless", but wireless is actually much broader

Wi-Fi example and How it Works
The easiest way to understand Wi-Fi is to consider an average home or business since most of them support Wi-Fi access.The main requirement for Wi-Fi is that there's a device that can transmit the wireless signal, like a router, phone or computer.
In a typical home, a router transmits an internet connection coming from outside the network,like an ISP,an delivers that service to nearby devices that can reach the wireless signal.Another way to use Wi-Fi is a Wi-Fi hotspot so that a phone or computer can share its wireless or wired internet connection,similar to how a router works
No matter how the Wi-Fi is being used or what its source of connection is the result is always the same: a wireless signal that lets other devices connect to the main transmitter for communication, like to transfer files or carry voice messages.
Wi-Fi, from the users perspective, is just internet access from a wireless capable device like a phone.tablet or laptop.
Most modern devices support Wi-Fi so that it can access a network to get internet access and share network resources.