This double issue of the IBM Journal of Research and Development focuses on the communication technologies in IBM that are contributing to the increasingly rapid and efficient movement of data. The issue contains fourteen papers on relevant work on semiconductor processes, models, and innovative architectures, as well as circuit design and testing efforts. Its cover is a composition of various aspects of that work. A broad array of important applications are covered in the fields of wired and wireless communications, including switches, network processors, wireless LANs (local area networks), cellular radios, and optical data transceivers.
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