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2025 Influential Mainframers

2025 Influential Mainframers

Planet Mainframe spent the month of April honoring the individuals that keep the world’s mainframe systems running. With the second annual Influential Mainframers campaign, we shared the stories of “the folks behind performance tuning breakthroughs, critical...

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Introducing LinuxONE 5 and trends for 2025

Introducing LinuxONE 5 and trends for 2025

IBM Introduces LinuxONE 5: A Sophisticated Approach to Security, Efficiency, and AI Integration for Modern Enterprises On May 6, 2025, at its annual THINK conference, IBM rolled out the IBM® LinuxONE 5, an advanced computing platform designed with the complexities of...

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z/VSE: The forgotten operating system

z/VSE: The forgotten operating system

In the world of mainframe operating systems, z/VSE is often overshadowed by better-known siblings such as z/OS. But z/VSE has an impressive story worth telling. Virtual Storage Extended (z/VSE) is an operating system designed specifically for IBM mainframes. It was...

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2025 Influential Mainframers

Influential Mainframers Trivia

April at Planet Mainframe was all about celebrating today’s Influential Mainframers, and if you’re looking for inspiration, the full list of honorees is well worth a look. Today, seeing women’s names among industry leaders might feel expected—but it certainly wasn’t...

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SHARE Pittsburgh 2026 - Register Now

Performance & Tuning Month

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  • Accelerating Mainframe Efficiency: Development and Testing Webinar

    Zoom - Virtual Meeting

    Unlock the power of instantly available mainframe resources to revolutionize mainframe delivery. The third session in the PopUp Persona Webinar series reveals how application developers, software engineers, and QA teams […]

Introducing LinuxONE 5 and trends for 2025

NEWS – Granite 4.0, Free Cybersecurity Labs, and more

IBM Announces Granite 4.0 Free (Cybersecurity) Labs! Upcoming IBM Z Day Chase Card Decommissioning All Mainframe Code, with AI Assistance IBM z/OS Core Collection v1.15.0 GA ReleasedIBM Announces Granite 4.0 IBM has introduced Granite 4.0, initiating a new era for its...

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TRIVIA – Penetration Testing

TRIVIA – Penetration Testing

Mainframes have long been known for their unmatched reliability and security—but even the most trusted systems can hide surprises beneath the surface. As technology evolves, so do the tactics of those trying to exploit it. Penetration testing (pen testing), or...

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TRIVIA – Cybersecurity Month

TRIVIA – Cybersecurity Month

For many of us, October is about falling leaves, shorter days, and cooler weather. It also happens to be Cybersecurity month, the time when we dial in on the never-ending (and ever-evolving) task of securing the mainframe. Mainframes have a reputation for being...

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TRIVIA – COBOL in Enterprise IT

TRIVIA – COBOL in Enterprise IT

In September, Planet Mainframe pays tribute to the programming language that has formed the backbone of many mission-critical workloads — COBOL. Considered by some to be a relic of early computing, COBOL continues to play a vital (if often overlooked) role in the...

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