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Backbone
The
backbone
is a
synonym
for the
spine
of a vetebrate organism.
Backbone
is used
colloquially
for for "
courage
".
In
telecommunications
and
computer science
, the term
backbone
has the following meanings:
The high-
traffic
-density connectivity portion of any
communications network
.
In
packet
-switched
networks
, a primary forward-direction
path
traced sequentially through two or more major
relay
or
switching
stations.: primarily switches and interswitch
trunks
. (
Source: from
Federal Standard 1037C
and from
MIL-STD-188
)
In transportation
backbone
has a similar meaning. More generally it is the most important part.
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