Semaphore may be:
Optical-telegraph systems:
- Semaphore line, a system of long-distance communication based on towers with moving arms
- Flag semaphore system
- Railway semaphore signal for railroad traffic control
Other:
- Traffic semaphore, another name for automotive traffic lights based on their early resemblance to railway semaphores
- Turning semaphore, retractable semaphores on automobiles from the 1920s to 1950s
- Semaphore (programming), in computer science, a mechanism for supporting mutual exclusion in concurrent programs
- Semaphore, South Australia, a historic seaside community in southern Australia
- Semaphore railway line, Adelaide, a closed railway line in Adelaide South Australia
- Semaphore (album), a 1998 album by the band Fridge
- Semaphore, fictional professor in Cubitus comic strips or Wowser cartoons
See also
A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system Flag semaphore is a system for conveying information at a distance by means of visual signals with hand-held flags rods disks paddles or occasionally bare or gloved hands One of the earliest forms of fixed Railway signal is the semaphore. The traffic light, also known as traffic signal, stop light, traffic lamp, stop-and-go lights, robot or semaphore, Trafficators are semaphore signals which when operated protrude from the bodywork of a Motor vehicle to indicate its intention to turn in the direction indicated by the For other uses see Semaphore. A semaphore, in computer science is a protected Variable (an entity storing a value or Abstract Semaphore is a north-western seaside Suburb of Adelaide of the LeFevre Peninsula 14km (8 Semaphore railway line was a railway in the north-west of Adelaide servicing the suburb of Semaphore and Exeter. Semaphore is an album by Fridge released March 16, 1998. Track listing "Cassette" (123 "Furniture This is about the comics series and its fictional dog character for the fore-limb joint see Elbow.Dictionary
semaphore
-noun
- Any visual signaling system with flags, lights, or mechanically moving arms.
- 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.
- (computing) 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
- (transitive) or (intransitive) To signal using (or as if using) a semaphore.
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