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semaphore |
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Semaphore functions as a kind of slow-motion magnifier for digital communications, and for me it connects with early visible communications technologies like the optical telegraph and semaphore flags. These mechanisms, which include "busy" logic, semaphore flags and interrupts, enable customers to manage contention issues between ports easily without external circuitry. Semaphore flags provide a hardware mechanism that allows the designer to manage the use of system resources, including operations within the shared memory itself. |
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