What is Wi-Fi

What is Wi-Fi

We are all familiar with Wi-Fi, which is supported in all mobile and laptop devices. Wi-Fi is a wireless networking technology that enables us to communicate with other computers, mobile devices, and networks across a wireless medium. Wi-Fi uses a circular spectrum of radio frequencies to deliver data.


The Wi-Fi Alliance, originally known as the Wireless Ethernet Compatibility Alliance, gave the title “Wi-Fi” to the communication standard for wireless networks that function as Local Area Networks without the use of cables or other types of wiring. It is called WLAN. IEEE 802.11 is the communication standard. The Physical Data Link Layer powers Wi-Fi.

Wi-Fi is now supported by all modern mobile computing devices, including laptops, smartphones, digital cameras, and smart TVs. Within a certain range, a Wi-Fi connection is made between an access point, base station, client, or any other client-to-client connection. The range is determined by the router that transmits radio frequency through Wi-Fi. Currently, 2.4 GHz and 5 GHz are the two types of bandwidth that these frequencies use.

wifi connections

The Wi-Fi adaptor that is built into the laptop or mobile device determines whether it can use both bandwidths. Modern laptops and mobile devices can use both bandwidths. The standard bandwidth that all the devices support is 2.4 GHz. In order to spread the Wi-Fi signal, 2.4 GHz can cover a wide area, but since the frequency is low, the speed of the internet is less. In contrast, 5 GHz bandwidth can cover a smaller region, but because the frequency is higher, the speed is much higher.