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#zos

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@Sheep_Overboard I am going to have to object. I work for mainframes, and our host code is 98% COBOL, it's very fast and reliable. A lot faster than Java, C, C++ etc. According to a 2022 study there are 800 billion lines of COBOL in use on a regular basis. I admit, I write z/OS assembler, and am a bit biased, but COBOL is still incredibly popular.

"According to surveys by Micro Focus (2022), around 800 billion lines of COBOL code are used in production every day."

#DogWatson und ich üben Zielobjektsuche. Bisher wirkt sie noch nicht, als hätte sie Spaß. Aber sobald wirklich gesucht werden darf und nicht mehr nur eine Wäschekammer angezeigt werden soll, hat sie bestimmt viel Freude daran. Bis dahin ist die Belohnung durch Futter motivierend genug die Nase ganz dicht dran zu legen. Es lastet sie hoffentlich etwas aus, es lässt sich ideal drinnen machen und wäre im Winter super zur Beschäftigung. #ZOS #Zielobjektsuche #Hundetraining #FediDogs #DogsOfMastodon

My possibly ill-informed opinion on the mainframe developer market

#zOS work has so many barriers
- Can't run it locally. Only 1 training program at IBM for terminal access. (wrong! prersonal edition exists)
- The only mainframe code you can run locally is MVS from the early 1980s
- GNUCobol is probably not like modern IBM Cobol
- Microfocus appears to be in financial crisis and you can't even get a trial license compiler, let alone a personal license compiler

1/2

Can you connect output from your COBOL copybooks to @ApacheKafka?

You can now 🤯

"IBM® Open Enterprise SDK for Apache Kafka® is a no-charge SDK that allows COBOL or C/C++ code running on z/OS® to natively communicate with a Kafka broker and to transform between COBOL copybooks and JSON events." #ApacheKafka

See, I told you lots of familiar distributed tech is landing in the #mainframe world!

ibm.com/products/open-enterpri #IBMZ #zOS

www.ibm.comIBM Open Enterprise SDK for Kafka ApacheIBM Open Enterprise SDK for Apache Kafka is a no charge SDK that allows COBOL or C/C++ code running on z/OS to natively communicate with a Kafka broker and to transform between COBOL copybooks and JSON events.

IBM CONTROL PROGRAM OF OPERATING SYSTEM/360 (Full)

Full film IBM B&W film introducing OS/360. The title is IBM CONTROL PROGRAM OF OPERATING SYSTEM/360. IBM's System/360 mainframe turns 50 (60 in 2024) soon and since YouTube now allows much larger uploads here is the complete introduction to OS/360. Preserved thanks to Michael Stack:

youtube.com/watch?v=378S5Owi-B

#IBM#System360#zOS

As a muscle memory check from things 33 years ago, I wanted to know how much the #ibm #mainframe under #zOS has changed from /370 back then.

Yes, we are now at #JES3 - and the new things for me were PDSEs and USS - feels weird calling #OMVS and having a #Linux environment #shell on the mainframe. Ah yes, we did not have #FICON either back then to define CHPIDs but the 3380 and 3390 were actually huge boxes connected via #bus and #tag cables.

In the past 2 weeks I've learned/relearned about:
* JCL
* working in 3270 with ISPF and SDSF
* Docker
* Ansible
* Linux on z/OS
* Zowe
* Node.js
* assembler on z/OS
* COBOL
* REXX
* Python

I'm not an expert, but I've done far more crazy stuff on top of z-iron in these 2 wks than I have in a long while and I'm like "give me MOAHR"

Replied in thread

@alan @taur10 @stevendbrewer

"ok, can you create a branch? I'm gonna need to port this to Visual Basic first"

😅​ Seriously, I do git it. There are many nations out there: #Windows, #Linux, #Mac, #zos and languages like #BASIC and #APL.

"I get that "you fix it" attitude rarely... "

I'm glad to hear it. But even asking me to branch is beyond my pay grade, and of most of the user base's comprehension. Neither the spouse or grannie are going to get this.

I was working with open source #Zowe stuff for three years, but then the Open #Mainframe Project fielded a mandatory conformance project I had to contribute to. The .md instructions were so bad, I had to rewrite them (RS is an #Author). In any case, they required me to do a #GitHub "pull request" to check-in my contribution (a json file) and for the .md file.

/RS.exe crashed at that point./

I pawned the project off on one of my Linuxy coworkers. Open source #programming is likely something people get really used to, but if you are a mainframer, Javascript and C programmer, or a Windows programmer, that's simply is Greek and is just one more thing to learn when I have no time because I have a dozen things to get done first.

Shoot. Ranted again. #ADHD Please forgive me!

IBMers,

I have a couple of questions as my curiosity and interests have been leaning kinda towards mainframes.

1. How are mainframes utilized in 2024?
2. How does the mainframe business work? I am assuming large contracts for hosted services?
3. Is there enough growth career-wise to merit a segue from another tech related position into mainframe support?
4. Do I have to learn COBOL?
5. Are there any other companies providing similar hosted services at scale?
6. Are there any resources available to learn up on Z/OS and any other services IBM provides? (For free?)
7. Can we be friends?

Any info is appreciated.
Hats off to all the humans supporting the BIG COMPUTERS.