Introduction to Variables

Overview

A program is something that takes data as input and performs operations on it to produce new data. Handling data is crucial in any application, regardless of if it’s being used for accounting or if it’s a game.

When we work with data, it must be stored in the computer’s memory, and this is done with variables. Variables let us store and retrieve data. In this chapter, we’ll get to know variables, see how they work, and look at some operations that we can perform on them.