What is the difference between "WiFi" and regular Internet?
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The entire backbone of the Internet is giant bundles of fiber optic cables. What changes with different types of Internet is what happens on the last mile- how it actually gets to your house.
If those fiber optic cables are connected to the phone network, you have DSL.
If the fiber optic cables are connected to a coaxial cable, you have cable Internet. routerlogin
If one of those fiber optic cables goes right to your door, you have fiber optic Internet, like FiOS. 192.168.0.1
And if those fiber optic cables are connected to a giant radio transmitter, you have cellular broadband. whatsapp web
Once it's in your house, you basically have two options: you can either send the signal through an Ethernet cable that you plug into your computer or you can buy yourself a small radio transmitter to make aort-range wireless network in your house- this is Wi-Fi.
It's true that a lot of people use WiFi, but it isn't ubiquitous. I live in an inner-city apartment. There are so many Wi-Fi networks here that the signals interfere with each other and it can get slow, so my computer is plugged in to my router with an Ethernet cable (although I do have WiFi for my other devices). My computer at work uses Ethernet as well.
