2026. NEXTGEN DEVOPS — Enterprise IT Before 2000: 1.1 Introduction: Why Study What Came Before 1 1.2 What "Enterprise IT" Means 3 1.3 A Periodization of Enterprise Computing, 1950–2000 3 1.4 The Centralized Paradigm: Mainframe Computing 4 1.4.1 What a Mainframe Is 4 1.4.2 Architecture 5 1.4.3 The Technol. NextGen DevOps: Enterprise AI Features & Autonomous Operations. Wissira Press.