What is binary semaphore? What is its use?

Question

Accepted Answer

A binary semaphore is a synchronization primitive that can have only two values: 0 and 1.

It is used to control access to a shared resource by multiple threads or processes.
When the semaphore value is 0, it means the resource is currently being used and other threads/processes must wait.
When the semaphore value is 1, it means the resource is available and can be used by a thread/process.
Binary semaphores are often used to implement mutual exclusion and prevent race conditions.
They can also be used to synchronize the execution of multiple threads/processes.

Accepted Answer

A binary semaphore is one, which takes only 0 and 1 values. They are used to implement mutual exclusion and synchronize concurrent processes.

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