Good article.
As often happens, the author didn't mention Linux for Z ... nor z/VM,
VSE, TPF.
Common public misconception is that Z is exclusively z/OS.
Don't misunderstand: this is no slam on z/OS. I'm a fan! That's the one
place I'd put my heavy-lifting database and similar "system of record"
workloads.
But Z is hardware and the other op sys make excellent use of that
superior hardware. I'm a fan of Linux and run it on several kinds of
hardware. The best Linux performance, and the most reliable operation,
is consistently on Z.
The article speaks much about COBOL. Sadly, I only know >one< university
professor teaching COBOL. (And his students are landing high-dollar jobs
out of the gate.)
COBOL benefits from inter-language workings. Similarly, z/OS benefits
from inter-opsys workings. And often those other op sys are on the same
class of hardware.
Calling COBOL to/from languages like PL/I, C, even Python or Rexx, makes
fabulous long-term use of all that lovely COBOL code "out there".
Where the Ars Technica article telling *that* story? (Credit where
credit due: this piece *did* discuss XML and JSON. Good.)
Sincere thanks Michael for sharing the article.
-- R; <><
On 7/24/23 13:33, Bill Johnson wrote:
Say it isn’t so! lol
It’s estimated that there are 10,000 mainframes in use today. They’re used
almost exclusively by the largest companies in the world, including two-thirds
of Fortune 500 companies, 45 of the world’s top 50 banks, eight of the top 10
insurers, seven of the top 10 global retailers, and eight of the top 10
telecommunications companies. And most of those mainframes come from IBM.
Sent from Yahoo Mail for iPhone
On Monday, July 24, 2023, 1:21 PM, Bob Bridges <robhbrid...@gmail.com> wrote:
Hey, that's fun! Kind of an answer to "the mainframe is old and decrepit and can't
survive much longer in the face of newer and [therefore] far better technologies".
---
Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313
/* As a father, I have a vested interest in seeing my children do well in
school. If they don't, they won't graduate, and will probably wind up living
in my house until they are thirty years old. This will interfere with my plan
to reach retirement age without killing another human being. -W Bruce Cameron,
_Study Habits_ (2001) */
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of
Schmitt, Michael
Sent: Monday, July 24, 2023 12:43
Ars Technica published a deep-dive explainer of modern IBM mainframes:
https://arstechnica.com/information-technology/2023/07/the-ibm-mainframe-how-it-runs-and-why-it-survives/
I’d quibble with the application server topic that talks about CICS with no
mention of IMS/TM. CICS is to IMS as Windows 3.1 is to Windows 10. 😊
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