What is Wi-Fi?

Wi-Fi full form is Wireless Fidelity is nothing but a wireless networking technology by which we can access networks or connect with other computers or mobile using a wireless medium. The communication Standard is IEEE 802.11. Wi-Fi works using Physical Data Link Layer. Wi-Fi is also Known as WLAN. Nowadays all mobile computing devices such as laptops, mobile phones, also digital cameras, and smart TVs have the support of Wi-Fi. The Wi-Fi connection is established from the access point or base station to the client connection or any client-to-client connection within a specific range, the range depends on the router which provides the radio frequency through Wi-Fi. These frequencies operate on 2 types of bandwidth at present, 2.4 GHz and 5 GHz. In Simple words, WLAN is a general term whereas Wi-Fi is the wireless technology that is under the category of WLAN.

Some of the important terminologies related to WLAN and Wi-Fi are given below:

1. Access Point(AP): AP is nothing but a device which acts as a central hub for Wi-Fi Connections.
2. Router: It is a device which is used to send or receive the data on the computer networks. It decides the best path for the data packets to move from one place to another.
3. Bandwidth: It is the maximum rate at which data transfer occurs across any particular path of network.
4. Channel: It is a medium which is used to transport information from one network device to another.
5. Roaming: It is nothing but the ability of the client device to move from one access point to another while maintaining a continuous connection.
6. SSID(Service Set Identifier): It is a sequence of characters that uniquely names a Wi-Fi network.

Networking of computers is a interconnection of computer devices that can exchange data and share resources with each other. These devices use some set of communication rules known as protocols to send or receive information over physical or wireless technologies.