This course provides students of information systems technology with the background knowledge and skills necessary to begin using the basic facilities of a mainframe computer. Explore the reasons why public and private enterprises throughout the world rely on the mainframe as the foundation of large-scale computing and discuss the types of workloads that are commonly associated with the mainframe, such as batch jobs and online or interactive transactions, and the unique manner in which this work is processed by a widely used mainframe operating system--z/OS.