"COBOL turned 66 this year and is still in use today. Major retail and commercial banks continue to run core account processing, ATM networks, credit card clearing, and batch end-of-day settlement. On top of that, many payment networks, stock exchanges, and clearinghouses rely on COBOL for high‑volume, high‑reliability batch and online transaction processing on mainframes. Which reminds me, mainframes are still alive and well too. Banking, insurance, governments, inventory management - all the same places you'll find COBOL, you'll find mainframes as well."
"None of that is as sexy as the latest AI program or the newest cloud-native computing release, but old dogs with their old tricks still have useful work to perform. All of which made me wonder what other technologies are likely to still be in use 50 or more years after they were first released. Here are the ones my friends and I came up with."
COBOL remains widely used across banking, payment networks, stock exchanges, and clearinghouses for core account processing, ATM networks, credit card clearing, and high-volume batch and online transaction processing on mainframes. Mainframes continue to power banking, insurance, government, and inventory management workloads. Legacy technologies have evolved significantly while retaining lineage to earlier systems. C continues as the dominant system programming language because of raw speed and portability across CPUs, and is expected to persist alongside COBOL. Rust offers memory safety and is gaining traction for system programming, but C's performance and ubiquity sustain its relevance.
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