It is now a full five decades since mainframe computers first came on the scene. These systems continue to dominate the world of large-scale business computing around the globe. From financial institutions and government operations to insurance companies and utilities, large private and public sector organizations are dependent on these giants to run critical IT and business operations with efficiency and reliability. In this report, Mark Combs, VP of Mainframe Customer Solutions at CA Technologies, discusses the key role the mainframe has in today’s modern e-business environment.