Data Communications Pocket Book
Data communications continues to expand due to the increased use of multi-media computers and through the use of the Internet and company-wide Intranets. The amount of data traffic carried over public telecommunication networks now exceeds that of voice traffic. Data communications links range from a simple low-speed modem operating over a pair of copper wires, through to complex packet switched networks operating over an optical fibre. ‘Data’ could be defined as non-real-time digital information such as data, photographic and video files. However, it could now also include real-time video streams and voice traffic since these are digitised and can have similar characteristics to data traffic. The convergence of all telecommunicat...
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