Last In First Out - A
queue of items (such as inventory items for example) configured in such a way that the item that will next be removed from the queue is the item that was most recently added to it. A stack of plates is a good example of a
LIFO. As you add plates, you add them to the top of the stack. When you remove plates you will remove each plate from the top, which is the plate most recently added. For this reason, a LIFO is sometimes referred to as a "stack". There are two other basic types of QUEUES:
FIFO (First In First Out) and
DEQUE (Double Ended QUEue).