What is Binary Semaphore in Operating System?

Learn Binary Semaphore definition in operating system with explanation to study “What is Binary Semaphore”. Study binary semaphore explanation with operating system terms to review operating system course for online degree programs.

Binary Semaphore Definition

  • A semaphore that takes only the values 0 and 1. A binary semaphore allows only one process or thread to have access to a shared critical resource at a time.

    Operating Systems by William Stallings



Binary Semaphore Explanation

A semaphore can be visualized as a counter that can be incremented or decremented . A binary semaphore can have either a value of 0 or 1. It means that a binary semaphore protects the access to a single shared resource.

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