Types of Powerboats and Their Uses. Bass boats are generally 14' to 23', and typically used for freshwater fishing. They have low freeboard and a V hull. They are specialized for bass fishing on inland lakes and rivers.
Caricature of a tramp. A vagrant or a vagabond is a person, often in poverty, who wanders from place to place without a home or regular employment or income. Other synonyms include tramp, hobo, and drifter.
Semaphores, another important contribution by E. W. Dijkstra, can be viewed as an extension to mutex locks. A semaphore is an object with two methods Wait and Signal, a private integer counter and a private queue (of threads). The semantics of a semaphore is very simple. Suppose S is a semaphore whose private counter has been initialized to a non-negative integer. When Wait is executed by a thread, we have two possibilities: