2.1 Preface Performance of a program: the amount of computer memory and time needed to run a program We use two approaches to determine it: performance analysis performance measurement
6.1 Definition Definition: A queue is a linear list in which additions and deletions take place at different ends. It is also called a first-in-first-out list. The end at which new elements are added is called the rear. The end from which old elements are deleted is called the front