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Semaphore
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Meaning
Noun
●
In Rail transportation:
Any
equipment
used for
visual
signalling
by means of
flags
,
lights
, or
mechanically
moving
arms
, which are used to
represent
letters
of the
alphabet
, or words.
●
A
visual
system for
transmitting
information using the above
equipment
; especially,
by means of
two
flags
held
one in each
hand
, using an
alphabetic
and
numeric
code
based on the
position
of the signaller's
arms
;
flag
semaphore.
●
In Computing:
A
bit
,
token
,
fragment
of
code
, or some other
mechanism
which
is used to
restrict
access to a
shared
function
or
device
to a
single
process
at a time
, or to
synchronize
and
coordinate
events
in different processes.
Verb
●
To
signal
using, or
as if
using, a
semaphore
, with the
implication
that it is done nonverbally.
Sourced from
Wiktionary
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