This book is designed to teach computer programming. The computer industry is expanding so rapidly and is already so large that programmers form but a small part of the industry as a whole. This book will introduce you briefly to hardware, and it will teach you some concepts that will help you buy the computer that is best for you. Its focus, however, is programming -- designing and writing the instructions that make the computer work. This is a textbook "for Christian schools." We want you to learn from this course what you should learn in every other course: abilities and principles that will make you a better Christian, one more like Christ than before. - Introduction.