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TRIVIA – Mainframes and Their Rivals

TRIVIA – Mainframes and Their Rivals

For decades, mainframes have stood quietly at the heart of global enterprise computing, but they haven’t been without competition. From the rise of minicomputers to the spread of UNIX systems and the open-source movement, each wave of innovation has challenged the...

Cheryl Watson’s Tuning Letter Delivers z/OS Tuning, Hardware Picks, and Performance Tips

Cheryl Watson’s Tuning Letter Delivers z/OS Tuning, Hardware Picks, and Performance Tips

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...

Mainframes in Pop Culture

Mainframes in Pop Culture

We’re in the long, hot days of summer here in the Northern Hemisphere, and while many of us may not be on summer holidays, our Planet Mainframe Trivia Quiz is going to venture into new territory - mainframes in pop culture! Mainframes may be known for their...