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Linux® on the Mainframe
book

Linux® on the Mainframe

by John Eilert, Maria Eisenhaendler, Dorothea Matthaeus, Ingolf Salm
June 2003
Intermediate to advanced content levelIntermediate to advanced
464 pages
10h 33m
English
Pearson
Content preview from Linux® on the Mainframe

2.3. Distinguishing features of the mainframe

Let us go deeper into the structure of three main resources defined by the S/360 architecture.[4] It is this structure and implementation that distinguishes the mainframe from other vendors' computer implementations and that can give some significant value to your business opportunity.

[4] In this book, we will use mainframe architecture to mean any of these architectures: S/360, S/370, S/390, or z/Architecture. If we refer specifically to the 64-bit architecture of the zSeries 900, we will use the term z/Architecture.

The mainframe is based on the von Neumann computer model (see Figure 2-3), with these main parts:

  • The CPU is the processing unit, responsible for executing instructions.

  • The memory[5] ...

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