What are some real-world examples of semaphore usage?

What are some real-world examples of semaphore usage?

Semaphore is used in various fields like programming, traffic control, and maritime communication. For instance, in programming, semaphores manage access to shared resources in concurrent processes.

Can you give me a specific example in programming?

Sure! In a multi-threaded application, a semaphore can be used to limit the number of threads that access a particular resource, like a database connection pool.

What about traffic control?

In traffic control, semaphore signals are used to manage vehicle and pedestrian flow at intersections, ensuring safety and order.

Are there any semaphore applications in maritime communication?

Yes, in maritime communication, semaphore flags are used to convey messages between ships visually, especially when radio communication is not available.