Other Definitions
semaphore (dict)

Semaphore

• Semaphore communication by means of flags or other positional indicator.
• A mechanical device (a semaphore signal) used in railway signalling.
• Semaphore (programming), invented by Edsger Dijkstra for computer science, where only one part of a concurrent system may access a limited resource. This is also called mutual exclusion.
• Semaphore, an historic (by Australian standards) seaside community in South Australia.

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