What are the frontiers of today's communications technology? The
Age of Electronic Messages explains the scientific principles on
which this technology is based and explores its capabilities and
limitations, its risks and benefits.In straightforward language
accompanied by numerous illustrations, Truxal describes the
communications technology that has become such an integral part of
today's work and leisure. He provides accounts of the bar codes
used in supermarkets and the postal system of the way signals are
described in terms of frequencies and in digital form of hearing
and audio systems, of radio and navigation, of medical imaging, and
of television broadcasting and narrowcasting.Unlike other books on
the subject, The Age of Electronic Messages takes into account the
sociology of the new communications technology as well as its
mathematical and physical underpinnings.John Truxal is
Distinguished Teaching Professor in the Department of Technology
and Society at the State University of New York at Stony Brook. The
Age of Electronic Messages is included in the Alfred P. Sloan
Foundation sponsored series, the New Liberal Arts.
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