Embedded Software Engineer Question:
Explain me what is semaphore?
Answer:
A semaphore is an abstract datatype or variable that is used for controlling access, by multiple processes to a common resource in a concurrent system such as multiprogramming operating system. Semaphores are commonly used for two purposes
☛ To share a common memory space
☛ To share access to files
☛ To share a common memory space
☛ To share access to files
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