How does the internet work, and why do we need wi-fi to use it?
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The internet is just a connection to everyone else’s computer. Amazon.com? That’s a giant computer owned by Amazon. Youtube.com? Another giant computer owned by Youtube. Wikipedia? Same thing. Gmail? Also a computer.
These computers are usually in giant warehouses in the middle of nowhere. So you need some way to connect to them. There are giant cables underground and under the ocean that connect all these different computers. Internet service providers (ISPs) like Comcast, Verizon FiOS, or Time Warner, give you access to these giant cables. The coax internet/tv cable coming into your house is a smaller cable, but it’s connected to the giant cables. Wifi is just a wireless connection to the same system, but it only has limited range.
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