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From Wikipedia, the free encyclopedia

Semaphore can refer to:

• Another name for the optical telegraph invented for Napoleon Bonaparte, a system of communication used prior to the invention of the electrical telegraph by moving arms atop a tower
• Flag semaphore, a communication system by means of flags
• A mechanical device (a semaphore signal) used in railway signalling
• An alternative name for traffic lights, based on their early resemblance to semaphore railway signals
• Semaphore (programming) in computer science are a mechanism for supporting mutual exclusion in concurrent programs.
• Semaphore, South Australia, a historic seaside community in southern Australia

[edit] See also

• International maritime signal flags
• Telegraphy

cs:Semafor

da:Semafor de:Semaphor es:Semáforo (desambiguación) fa:نشان‌بر fr:Sémaphore it:Semaforo he:סמפור nl:Semafoor pl:Semafor sv:Semafor ru:Семафор