Have you ever stopped to wonder why you take it for granted that your credit card transactions and bank balance will be timely, reliable, and accurate, and you assume that any information the federal government has about you is not modified by hackers or processing errors? When discussing the role of the systems of record in enterprise architectures, IBM's mainframe systems and design patterns remain an immensely important part of the overall flow of data through processing systems, and play an outsized role in providing a reliable, scalable and well-tested engine for processing information.

Introduction to Enterprise Systems describes the design of the IBM Z hardware and operating systems, with a deep dive into how the z/OS operating system and z/OS  application software combine for maximum reliability, serviceability, and availability for processing enterprise workloads. These systems are a critical part of a reliable enterprise computing architecture to deliver an important platform that runs the world economy. This book discusses the history, context, ecosystem, and technology of the IBM Z platform and its predecessors reaching back to the original System/360 announced on April 7, 1964 and the integration capabilities and resources provided by IBM systems and software. This book provides a key reference source for understanding the critical capabilities and components of these systems and their role in a modern enterprise architecture.