C fundamentals

The individual elements of a computer language such as C do not stand alone, but rather in conjunction with one another. Therefore, it is necessary to understand several key aspects of C before examining each  element of the language in details. To this end , this chapter presents a quick overview of the C language. Its goal is to give you sufficient working knowledge of C  so That you can understand the examples in later chapters.

As you work through this chapter, don't worry if a few points are not entirely clear. Than main thing you need to understand is how and why the example programs execute as they do. Keep in mind that most of the topics introduced in this chapter will be discussed in grater detail later in this book . In this chapter, you will learn about thee basic structure of a C program, what a C statement is, and what variables, constants, and functions are. you will learn how to display text on the screen and input information form the keyboard. 

To use this book to the fullest, you must have a computer, a C compiler, and text editor, in which case you won't need a separate on. For the best results, you should work along with the examples and try the exercises.