COBOL.fyi
The industry standard source for COBOL and mainframes
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Why 95% of ATM Transactions in the US Still Run on COBOL
IBM vs Claude Code: COBOL Modernization
How to Prioritize Which COBOL Components to Modernize First
Hidden risks of COBOL migration: Implicit dependencies and shared state
What AI Can (and Can't) Do in a COBOL Modernization Project
How to Build a Strangler Fig Pattern Around a COBOL Batch Job
Originals
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Why 95% of ATM Transactions in the US Still Run on COBOL

IBM vs Claude Code: COBOL Modernization

How to Prioritize Which COBOL Components to Modernize First

Hidden risks of COBOL migration: Implicit dependencies and shared state

What AI Can (and Can't) Do in a COBOL Modernization Project

How to Build a Strangler Fig Pattern Around a COBOL Batch Job

How to Write Unit Tests for COBOL Programs That Have Never Had Any

How to Identify and Isolate Shared State Before Touching a COBOL Module
Industry News
View AllWhy mainframe security requires continuous verification
For organizations that depend on the mainframe, adopting continuous analysis can help identify, reduce, and address risk.
Google Cloud: Mainframe modernization with four building blocks
Google offers iterative modernization of mainframe applications to the cloud, supported by AI for analysis and transformation.
Why mainframes remain central to enterprise transformation
AI, hybrid cloud and cyber resilience are redefining, not replacing the modern mainframe.
After shocking quarter, IBM insists that AI isn’t killing the mainframe
After IBM's stock crashed last week on warnings of a poor mainframe sales, the CEO explained that AI wrecked corporate hardware budget, temporarily.
European Firms Deploy GenAI in Mainframe Modernization
LONDON--(BUSINESS WIRE)--European companies adapting mainframe systems are moving from experimental to operational use of generative AI (GenAI) within standardized workflows, integrating it in key ...




