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A comment on IBM introduces z15 mainframe. Parent comment

Re:IBM introduces z15 mainframe by rbanffy on Sunday September 15, 2019 @04:43PM (#20979384)
It is as far away from a x86 server than a s/390 was from an AS/400. It was a unique architecture that came from, IIRC, the System/38. Also, its native encoding is EBCDIC. It shares a couple concepts and names, such as LPARs.
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Re:IBM introduces z15 mainframe by monocasa on Sunday September 15, 2019 @05:57PM (#20979715)
It has stuff like LPARs because it shares a processor arch with IBM's COTS servers running POWER (yes it has an extension to have tagged pointers, but they demoed it originally on unmodified POWER).

Ie. it shares way more with regular server boxes than mainframes.

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