This book will teach you the basic information and skills you need to develop applications with the COBOL programming language on IBM mainframe computers running z/OS. The instruction, examples and sample programs in this book are a fast track to becoming productive with COBOL as quickly as possible. The content of this book is easy to read and digest, well organized and focused on honing real job skills. Acquiring these skills is a key step in mastering COBOL application development so you'll be ready to perform effectively on an application development team.