Insights

Analysis, perspectives, and technical resources on mainframe topics.

Type

Product

Press Release

Data21 Launches Connect/3270: Unlocking Mainframe Intelligence for Human and AI Access

White Paper

Streaming vs File-Based Access to z/OS Datasets from USS

Article

Secure 3270 Web Access Without Plugins or Middleware Servers

White Paper

Optimizing OpenPGP on z/OS: Cost Reduction, Governance, and Hybrid Agility

Press Release

ZIP/390 MP Rebrands to Connect/MP, Reflecting Expanded Mainframe Modernization Capabilities

Article

The Strategic Value of Connect/Hybrid in Modern Hybrid IT

News

ZIP/390 MP Gets New Features and a New Name

White Paper

Value and Benefits of ZIP Compression Products Leveraging IBM zEDC and zIIP

White Paper

Risks and Hidden Costs of ZIP Compression on z/OS

Over 45 Years of Mainframe Solutions

Data 21

About Data 21

Founded in 1980, Data 21 Inc. is a veteran-owned enterprise software company headquartered in California. For over 45 years, we have delivered innovative, reliable, high-performance mainframe-centric solutions that power today’s connected enterprise.

Our software is embedded in the critical daily operations of hundreds of enterprises worldwide — a testament to our commitment to exceptional engineering and long-term client success. We don’t just support our customers; we evolve alongside them.

At Data 21, the mainframe isn’t a legacy constraint — it’s a strategic foundation.

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