Integer - GCSE Computer Science Definition

An integer is a whole number that can be either positive, negative, or zero. In computer science, integers are important because they are used to perform calculations and store data in computer programs. Unlike decimal numbers, integers do not have fractional parts; they are complete numbers like -3, 0, or 42. Integers are also used in programming to control loops and count repetitions, making them a key part of many computer algorithms. Understanding integers is essential because they help in making logical decisions and solving problems in coding tasks.