Question

Atomic operation(s) permissible on Semaphores is/are?

Answer 1

Two Atomic operation(s) permissible on Semaphores are Wait and Signals.

Basic Concept. Semaphores, another important contribution by E. W. A semaphore is an object with two methods Wait and Signal, a private integer counter and a private queue (of threads).

Suppose S is a semaphore whose private counter has been initialized to a non-negative integer.