Semaphores are an important tool for managing concurrency in computer programs. They are used to manage access to shared resources in a multi-threaded environment and help prevent synchronization issues and coordinate access to shared resources.
The concept of semaphores was first introduced by Edsger Dijkstra in 1965, and they have since become a fundamental tool for developing efficient and effective software. This article will explore semaphores, how they work, and some best practices for using them in your programs.