Chapter 2. How Computer Networks Send Data Across the Internet
You might take for granted that when you send a piece of information across the Internet, it will always reach its intended destination. However, the process of sending that information is remarkably complex.
When you send information across the Internet, the Transmission Control Protocol (TCP)—the language computers use when communicating over the Internet—first breaks the information up into packets, smaller blocks of information that also contain a variety of data that helps the packets travel across the Internet. Your computer sends those packets to your local network, ...
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