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An
important concept ...
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| v |
In
computing it is common to separate the logical
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idea
of something -- the way you think about it -- from
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the
physical implementation -- how it’s actually built
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| v |
This
is called a physical / logical separation
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In
networking, the domain names make up our logical
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network,
a hierarchical arrangement of names that
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tell
us associations: cs.washington.edu
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The
computers actually use physical addresses
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The
DNS enables the separation by making the
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correspondence
between the two
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