This book introduces the computer programming concepts, taking C language as the medium. It lays emphasis on foundations, basic principles and concepts of computer programming. Beginning with very elementary concepts related to computer fundamentals and operating system, students are presented with detailed discussions on a variety of programming constructs and features of C language. Various concepts are discussed in different chapters providing detailed description of the topics. This book constitutes 17 chapters, each revealing the basic and fundamental concept. No prior knowledge of computers and the programming language is needed.