IBM (International Business Machines)

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Table of contents

IBM Power Systems

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IBM Power S1122

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IBM Power E1150

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IBM Power S1124

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IBM Power E1180

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Power servers | IBM

Gamme Power Systems

https://www.youtube.com/watch?v=7ZdsWebj9Jw

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In 1995, IBM transitioned from 48-bit to 64-bit addressing, and from a CISC (Complex Instruction Set Computer) to a RISC (Reduced Instruction Set Computer) architecture, without impacting existing applications

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ppc64 refers to the 64-bit PowerPC (Power Performance Computing) architecture, which is a RISC developed by the Apple-IBM-Motorola alliance (AIM) in the 1990s.

ppc64 is the 64-bit big-endian PowerPC architecture used primarily in legacy IBM and Apple hardware and still used in certain server and embedded systems environments (like Power Mac G5 and Xserve G5)

ppc64le is the little-endian variant introduced later for better Linux compatibility on POWER8 and newer processors

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Family tree and timeline

Platform’s family tree

Platform’s family tree

Operating system’s family tree

Operating system’s family tree

Platform name Operating system Year
AS/400 OS/400 1988
iSeries OS/400 2000
System i i5/OS 2004
Power Systems IBM i 2008

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Prior to the arrival of IBM i, System/38 was highly regarded for its object-based design, integrated relational database and security. IBM aimed to merge its entire mid-range and mainframe product range. This project did not entirely succeed, but did result in a number of innovative products, notably the 9370 and the AS/400.