As a teenager, I fell in love with mainframes and motorcycles. In the latter case, to be more precise, with classic Kawasaki bikes of the 1970s and 80s. And for me, there are important crossovers. The first point is that I love building and fixing things. The...
Putting the AI into mAInframe security Artificial intelligence can be as much a help as a threat: a powerful tool in the hands of either the good, the bad or the ugly. Today’s threat landscape and cybersecurity requirements are more complex and challenging than ever....
Hello from me, Mark Wilson, the incoming Editor and Producer for Cheryl Watson’s Tuning Letter. We’re proud to release the latest issue, 2024 No.4, on the publication’s website. If you’re not a subscriber yet, consider this your nudge. You can...
The world’s attention shifted to Washington D.C. recently – I mean the mainframe world, of course, as the US capital played host city to the latest SHARE.org conference. I had the pleasure of attending this excellent, well-run event, which brought together industry...
If you work with mainframes, keep reading and catch the latest from Cheryl Watson’s Tuning Letter. The quarterly Tuning Letter offers comprehensive, practical, and impartial z/OS and MVS tuning and measurement advice. We deliver the insights you need in an...
We are delighted to announce that Cheryl Watson's Tuning Letter 2025 No.2 is now available. If you haven't already subscribed, now is your chance to discover the most comprehensive body of practical and impartial z/OS, and MVS tuning and measurement advice ever...
The goal is not disruption but discovery. For decades, mainframes have been at the heart of critical industries such as finance, healthcare, government, and retail. Since IBM introduced the System/360 in 1964, these systems have earned a reputation for being reliable,...
Do more at the Core. Built to Learn, Engineered to Lead. The GS-UK In-Person Conference 2025 will be held on Monday, 3 November to Thursday, 6 November 2025, at Whittlebury Hall, Northamptonshire. This year’s theme is Do more at the Core. Built to Learn, Engineered to...
The latest Tuning Letter, 2025 No.3, is out now! Subscribers to Cheryl Watson’s Tuning Letter can find the latest issue, 2025 No.3, on our Tuning Letter website. If you are not a current Tuning Letter subscriber, check the website for information about subscription...
IBM’s zPDT Decision Risks Mid-Tier ISVs and Mainframe Innovation I’ve been a passionate mainframe (System z) advocate for over 45 years and a staunch supporter of IBM and most of their decisions. However, when I received an email from IBM on 30 September 2025...
