Semaphore vs Dogwhistle - What's the difference?
semaphore | dogwhistle |
Any visual signaling system with flags, lights, or mechanically moving arms.
* 2008 , Gene Weingarten, Old Dogs: Are the Best Dogs , Simon & Schuster, page 4 [http://books.google.com/books?id=GOUMoGLf9tYC&printsec=frontcover&dq=gene+weingarten&source=bl&ots=BgRdWbPGYP&sig=gd-Mgu3cNEgerci0w2psNOA6ZjM&hl=en&sa=X&ei=GDIVUNqbDcOYqAGZx4HgBQ&ved=0CDgQ6AEwAQ#v=onepage&q=semaphore&f=false]:
A visual system for transmitting information by means of two flags that are held one in each hand, using an alphabetic and numeric code based on the position of the signaler’s arms.
(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.
(intransitive) To signal using (or as if using) a semaphore.
* 1990 , (Peter Hopkirk), The Great Game , Folio Society 2010, p. 425:
semaphore
English
(wikipedia semaphore)Noun
(en noun)- Consider the wagging tail, the most basic semaphore in dog/human communication.
Verb
(semaphor)- Minutes later, unseen by the defenders, he semaphored back across the valley that he was going to make a fresh attempt.