Understanding How This Internet Thing Works

The Internet is a worldwide network of computers that can communicate with one another and share resources. The computers are all interconnected by a massive collection of fiber-optic cables, phone lines, and wireless signals that facilitate data transfer at lightning-fast speeds.
For your computer to plug into this network and tap its resources, it needs a modem and an Internet service provider (ISP). The modem is the hardware your computer uses to send and receive data on the Internet—it’s sort of like a telephone for your computer. The ISP functions as a communications hub between your computer and the Internet. Using the modem, your computer connects to the ISP, and the ISP connects to the Internet, ...

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