SEMAPHORE

Semaphore

In computer science, particularly in operating systems, a semaphore is a variable or abstract data type that is used for controlling access, by multiple processes, to a common resource in a parallel programming or a multi user environment.

The above text is a snippet from Wikipedia: Semaphore (programming)
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semaphore

Noun

  1. Any visual signaling system with flags, lights, or mechanically moving arms.
  2. 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.
  3. 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

  1. To signal using (or as if using) a semaphore.


The above text is a snippet from Wiktionary: semaphore
and as such is available under the Creative Commons Attribution/Share-Alike License.

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