OS 390 eNetwork Server 
This course provides an introduction to the capabilities and business uses of the
IBM OS/390 eNetwork
Server. It covers platform and protocol support, and a system-wide view of the function of a communications server in business. This course is written to OS/390 2.x. This course is designed as an introductory course for managers, system administrators, and programmers.
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OS 390 Introduction 
...IBM OS/390 integrated network operational environment. OS/390 presents all the elements of the S/390 system in one integrated package. This course provides a brief background to mainframe systems, and describes the basic functional areas of the OS/390 environment. The course describes the evolution of OS/390 from
IBM's original
MVS system and provides a brief history of
UNIX. It also
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