March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
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Chapter 2. Mainframe hardware systems 41
The device address seen by software is more correctly known as a device
number (although the term
address is still widely used) and is indirectly related to
the control unit and device addresses.
For more information about the development of the IBM mainframe since 1964
see Appendix A, “A brief look at IBM mainframe history” on page 581.
2.3 Current design
Current CPC designs are considerably more complex than the early S/360
design. This complexity includes many areas:
I/O connectivity and configuration
I/O operation
Partitioning of the system
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