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Technology and Workflows for Multiple Channel Content Distribution by Philip J. Cianci

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CHAPTER

7

Content distribution networks

From the invention of telegraph and the start of electrical communications, distribution channel technology has governed the amount of information that could be transmitted in a given time interval. No matter how one tries, the physics of the distribution channel determine how much information can fit in the pipe.

Bandwidth is a fundamental characteristic of a communications channel. It is a measure of data transfer capacity. Bits per second metrics are used for serial, single-wire paths; bytes per second metrics are used for parallel data transfers; and symbols per second metrics are used for more sophisticated methods of digital transmission.

Content distribution networks can be broken down into two ...

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