Semaphore in os: In multiprogramming systems

In multiprogramming systems, multiple processes may need to access shared resources like files, printers, or memory. To handle this, operating systems use synchronization mechanisms. One of the most widely used mechanisms is the Semaphore . A semaphore is a tool used in computer science to manage how multiple programs or processes access shared resources, like memory or files, without causing conflicts. Semaphores are compound data types with two fields one is a Non-negative integer S.V ( Semaphore Value) and the second is a set of processes in a queue S.L ( Semaphore List or Queue). It is used to solve critical section problems, and by using two atomic operations (wait and signal ). What is a Semaphore ? A semaphore is a tool ... Semaphore in OS is an integer value that indicates whether the resource required by the process is available or not. The value of a semaphore is modified by wait () or signal () operation where the wait () operation decrements the value of semaphore and the signal () operation increments the value of the semaphore . Semaphore in OS is a synchronization tool used to regulate access to shared resources. Know the types and advantages of semaphores in OS .