Is COBOL holding you hostage with Math?

Face it: nobody likes fractions, not even computers.

When we talk about COBOL the first question on everyone’s mind is always Why are we still using it in so many critical places? Banks are still running COBOL, close to 7% of the GDP is dependent on COBOL in the form of payments from the Centers for Medicare & Medicaid Services, The IRS famously still uses COBOL, airlines still use COBOL (Adam Fletcher dropped my favorite fun fact on this topic in his Systems We Love talk: the reservation number on your ticket used to be just a pointer), lots of critical…

Tracing the legacy of old computer systems from mainframes to that BS angular app you built in 2005. Retro computer art by macrovector courtesy of

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Marianne Bellotti

Marianne Bellotti

Author of Kill It with Fire Manage Aging Computer Systems (and Future Proof Modern Ones)

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