Computer Science
Answer
FIFO, First In First Out, defines a queue because in a queue, elements are retrieved from one end (called the front end) and inserted at another end (rear end). Thus, at any time, in a queue, retrieval gets the oldest element, while always adding to the rear of the queue. Thus, items are processed in first-in, first-out (FIFO) order.
Related Questions
Fill in the blank
(a) …………… is a linear list of elements in which insertion and deletion takes place from different ends.
(b) Operations on a queue are performed in …………… order.
(c) Insertion operation in a queue is called …………… and deletion operation in a queue is called …………… .
(d) Deletion of elements is performed from …………… end of the queue.
(e) Elements 'A', 'S', 'D' and 'F' are present in the queue, and they are deleted one at a time, …………… is the sequence of element received.
(f) …………… is a data structure where elements can be added or removed at either end, but not in the middle.
(g) A deque contains 'z', 'x', 'c', 'v' and 'b' . Elements received after deletion are 'z', 'b', 'v', 'x' and 'c'. …………… is the sequence of deletion operation performed on deque.
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