Wi-Fi is a wireless networking protocol that allows devices to communicate without direct cable connections.
Wi-Fi is the most popular means of communicating data wirelessly, within a fixed location. It’s a trademark of the Wi-Fi Alliance, an international association of companies involved with wireless LAN technologies and products.
To understand Wi-Fi,The main requirement is that there’s a device that can transmit the wireless signal, like a router, phone, or computer.
WiFi network makes use of radio waves to transmit information across a network. The computer should include a wireless adapter that will translate the radio signals sent into data. This same signal will be transmitted, via an antenna, to a decoder known as the router. Once decoded, the data will be sent to the Internet through a wired Ethernet connection.
WiFi works on the same principle as other wireless devices – it uses radio frequencies to send signals between devices. The radio frequencies used in walky-talkies, car radios, cell phones are normally in the range of Kilohertz and Megahertz whereas in Wi-Fi they are Gigahertz. They are either 2.4 GHz or 5GHz in Wi-Fi.
But Microwave uses 2.450Ghz and a faulty one can interfere with WI-Fi. The higher frequency allows the signal to carry more data. The 2.4GHz signal is what all 99% of all global WiFi devices are compatible with. This means that computers, smart TV’s, game consoles, tablets and more are all able to connect to the internet via this frequency