Chapter 8. Channels and Coding
Communications is all about language and, unfortunately, understanding computer communications requires learning another language, one that explains the technology that allows us to send messages, music, and even pictures electronically.
We're going to talk about channels, which are nothing more than the paths your electronic messages take. A communication channel is like a television channel. More than that, a television channel is a communication channel—a designated pathway for the television signal to get from the broadcasting station to your antenna and television set.
Different channels require technologies for moving information. Paper mail is a communication channel that requires you to use ink and paper ...
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