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Books > Professional & Technical > Electronics & communications engineering > Electronics engineering > Electronic devices & materials > Microprocessors
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Real-Time Software Design - A Guide for Microprocessor Systems (Paperback, Softcover reprint of the original 1st ed. 1987)
Loot Price: R1,364
Discovery Miles 13 640
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Real-Time Software Design - A Guide for Microprocessor Systems (Paperback, Softcover reprint of the original 1st ed. 1987)
Expected to ship within 18 - 22 working days
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Computers these days spend a fairly low fraction of their time
computing. In fact, the very word "computer" has become something
of a misnomer. In the American History museum of the Smithsonian
Institute in Wash ington, D.C., there is an exhibit of early
computers. Three features of these machines are striking. First,
they are enormous, especially in com parison to their capabilities.
The museum visitor who has just come from the Natural History
building next door may be reminded of fossilized di nosaur bones.
Second, they don't look at all like modern computing ma chines. The
cases are made of crude metal or beautifully worked wood, recalling
an approach to the design of scientific apparatus which belongs to
a previous generation. Lastly, the function of these machines is
mainly to compute-to perform rapid arithmetic. The computer of
today bears little resemblance in size, form, or function to its
ancestors. It is, most obviously, smaller by several orders of mag
nitude. Its form has changed from the carefully crafted
one-of-a-kind in strument to the mass-produced microchip. But the
change in its function is perhaps the most dramatic of all. Instead
of being a computing engine, it is a machine for the processing of
information. The word "processor" has come into common usage. A
processor used to be a central processing unit-a set of wires and
vacuum tubes, or later a set of printed circuit boards-which was
nestled deep within the computer. Today a processor is an
off-the-shelf component."
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