Abcs of os/390 system programming volume 1

This redbook is Volume 1 of a five-volume set that is designed to introduce the structure of an OS/390 and S/390 operating environment. The set will help you install, tailor, and configure an OS/390 operating system, and is intended for system programmers who are new to an OS/390 environment. Volume 1 gives a broad understanding of the software and S/390 architecture and how it is used together with the OS/390 operating system. Chapter 1 provides an introduction to the products and components that make up an OS/390 system. Chapter 2 describes OS/390 storage concepts. Chapter 3 describes S/390 hardware and I/O management which includes an introduction to HCD. Chapter 4 describes the customization and installation products TSO/E and ISPF and job control language (JCL). Chapter 5 describes the OS/390 delivery options and the download process using ServerPac option.