How Does WiFi Work?

The video above is included in the following blog post on network-from-home.com:

https://network-from-home.com/does-a-modem-provide-wifi-the-facts-you-should-know/

0:00 Introduction
0:13 What is WiFi?
0:38 Where does WiFi come from?
2:04 How do devices connect to WiFi?
3:01 How your devices communicate with each other over WiFi
3:41 The difference between WiFi and wireless internet
5:10 How wireless internet connections work
8:20 Conclusion

What is WiFi?
WiFi is simply a standard of communication that allows devices to communicate with each other if they’re on the same WiFi network.

WiFi is made possible by radio signals that are emitted from routers. There are generally two separate WiFi networks that are broadcast from routers, and each network is broadcast at a different radio frequency.

The two radio frequencies that are used for WiFi networks today are 2.4 Gigaherz and 5 Gigaherz.

Devices that are able to communicate over WiFi can detect these radio frequencies and send and receive data to your router using them.

The difference between WiFi and wireless internet
The key distinction to make is that WiFi is just a method of communication.

WiFi is not the same as wireless internet.

Wireless internet can be provided to devices over WiFi, but your router cannot provide wireless internet connections on its own.

Wireless internet connections are provided with the help of a modem.

The modem’s job is to establish an internet connection with an Internet Service Provider (ISP). This internet connection is then passed to the router, which allows devices to access the internet through the router’s WiFi network.

To put it simply, a modem and router must both be in place in your home network if you want to provide wireless internet connections to your devices.

Conclusion
If you have any questions about how WiFi works, please leave a comment below. You can also check out the blog post I linked to above for more information.

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