From cell phones to Web portals, advances in information and
communications technology have thrust society into an information
age that is far-reaching, fast-moving, increasingly complex, and
yet essential to modern life. Now, renowned scholar and author
David Luenberger has produced "Information Science," a text that
distills and explains the most important concepts and insights at
the core of this ongoing revolution. The book represents the
material used in a widely acclaimed course offered at Stanford
University.
Drawing concepts from each of the constituent subfields that
collectively comprise information science, Luenberger builds his
book around the five "E's" of information: Entropy, Economics,
Encryption, Extraction, and Emission. Each area directly impacts
modern information products, services, and technology--everything
from word processors to digital cash, database systems to decision
making, marketing strategy to spread spectrum communication.
To study these principles is to learn how English text, music,
and pictures can be compressed, how it is possible to construct a
digital signature that cannot simply be copied, how beautiful
photographs can be sent from distant planets with a tiny battery,
how communication networks expand, and how producers of information
products can make a profit under difficult market conditions.
The book contains vivid examples, illustrations, exercises, and
points of historic interest, all of which bring to life the
analytic methods presented: Presents a unified approach to the
field of information science Emphasizes basic principles Includes a
wide range of examples and applications Helps students develop
important new skills Suggests exercises with solutions in an
instructor's manual
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