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What are semaphores?

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Wiki User
2006-07-08 22:19:50

Click on the link to your right for the answer. Signaling

devices, typically to give permission to go ahead or to stop, but

can also have other meanings. On a rail line, a lifted green flag

can be the semaphore that means to go ahead. Traffic lights are a

kind of semaphore. In computer RS232 communication lines the RTS

and CTS lines are sometimes called semaphores.


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