IBM (International Business Machines)
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Table of contents


IBM Power S1122


202505_power11_mahaney_atx_s1122-ioco_0307-edited.avif
IBM Power E1150


202505_power11_mahaney_atx_e1150-ioco_0118-edited.avif
IBM Power S1124


202505_power11_mahaney_atx_s1124-ioco_0296-edited.avif
IBM Power E1180


202505_power11_mahaney_atx_e1180-ioco_0096-edited.avif
https://www.youtube.com/watch?v=7ZdsWebj9Jw
<aside> 💡
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
</aside>
<aside> 💡
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
</aside>
IBM - Power Processors & IBM i (William J Starke).pdf

Platform’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 |
