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#mainframe

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One of my favorite things about #mainframe hardware development is that it undergoes #earthquake tests.

It's been a while since we've seen new footage, but now we have a new video!

The IBM z17 that announced today undergoing tests under the condition of an 8.3 magnitude earthquake!

mediacenter.ibm.com/media/1_w4

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I had to dig up a specification for the new IBM z17 and voila, the Redbooks are live today too! They're basically my go-to for all this knowledge: redbooks.ibm.com/feature/z17

And I have my image-heavy blog post about some of my favorite hardware bits of this new #mainframe drafted up, which I hope to publish in a couple weeks.

www.redbooks.ibm.comIBM z17 | IBM RedbooksMeet IBM z17, the newest member of the IBM Z family. Accelerate your digital transformation initiatives.
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A thread in a lot of the #IBMZDay Launch sessions is skills, which is nothing new for the #mainframe space 😉

But something that is new is clients speaking up about how helpful some of the AI-driven tooling has been in helping get newcomers up to speed. From making documentation easier to find and search, to gaining a firm understanding of data & code architecture. Cool.

But we are still working on traditional training and skills too with the Mainframe Skills Depo! ibm.com/z/resources/mainframe-

www.ibm.comMainframe Training and Skills - IBM ZIBM Z Mainframe Skills Depot is an online learning platform with courses, labs, and certifications for [IBM Z](https://www.ibm.com/z) and related skills.

The #IBMZDay schedule for April 8th is now up! community.ibm.com/zsystems/eve

I worked on the Developer Journey 🧑‍💻 which takes you through everything from technical sessions related to the latest #mainframe hardware to direct application of both open source and proprietary tooling that can help you develop code more effectively, and even a session around getting that #COBOL 6 compiler upgrade done (it has some really cool features) ✨

The event is virtual and free, reg: ibm.biz/ibmzday2025-se

IBM Z and LinuxONE CommunityIBM Z Day 2025 SE | IBM Z and LinuxONE CommunityOne day, free virtual conference, designed for our community.

Fun fact. Of my two grandfathers, one was an #electronics technician for most of his life and he loved #computers. My other grandfather spent time as a mainframe operator and ended up hating computers with a passion after that.

I once worked closely with a guy who was semi-retired and knew my #mainframe operator grandfather, they worked together in fact. I was once told a story about how they replaced all the typewriters in the office with dumb terminals linked to the mainframe and the office workers found various creative ways to cause the dumb terminals to malfunction so they could get their typewriters back.

There is no moral to this story other than what you can ascribe to it. Carry on and enjoy your day!

Tracing back #programming language history to the root of the very first (mnemonic) #GOTO instruction (jump/branch) I found two different sources:

1. In 1954 Nathanael Rochester developed the "first" mnemonic #assembler for the #IBM 701 #mainframe computer that uses "TR" jump commands: shrtn.escalar.pt/ZuE5

2. In 1947 the "manual" for the #Whirlwind computer contained the "sp x" mnemonic: shrtn.escalar.pt/FdYC

So, which one was actually the "first" to use mnemonics for branching?