LOLOLOLOL you people are hilarious. does z stand for in IBM Z?zero downtimeThe Z series (Z stands for “zero downtime”) introduced several breakthroughs that continue to be employed today. IBM z15. A raft of new features. The IBM z15 followed in 2019, running on the IBM System/390 chip architecture.
Sent from Yahoo Mail for iPhone On Monday, March 3, 2025, 12:02 PM, Phil Smith III <li...@akphs.com> wrote: Right, and it was "zSeries" (and pSeries and iSeries and xSeries), not z-series or z/Series or any other variation. And that name died in 2005. BTW, per IBM, "z/" = software; no slash=hardware. This gets blurry with things like z/Architecture, which they consider to be software, and zSecure, which they consider to be hardware, even though both could reasonably be considered the "other thing". But it's otherwise not tricky, even if a lot of vendors don't seem to have understood it. IIRC xSeries was because of x86. Or maybe I assumed that. My mnemonic was fuzzy but worked for me: z -- this one I could remember since it was everywhere in my world (z900, z/OS, z/VM, etc.) x -- x86 p -- Power i -- the other one :) -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Pommier, Rex Sent: Monday, March 3, 2025 11:32 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: [EXTERNAL] Re: The mainframe is alive What? IBM calls it "z series" because it's the end of the line? Where did you dream that one up? According to my memory - and Wikipedia (along with several other sources) agrees with me - way back when IBM rebranded their lines, they named the mainframe line the z series for zero down time. They named the RS6000s the p series for performance and the AS/400 line the I series for integrated because it comes with an integrated DB2 database. I don't know and don't care why the labeled the Intel based machines the x series. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
