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queuebert • yesterday at 5:24 PM • 2 replies • view on HN

There used to be stock exchanges running happily on DOS. Maybe there still are.

Replies

chaps • yesterday at 5:26 PM

Worked at an exchange in 2007/2008 and... we had systems still running from the 80s. Mostly tape audit stuff.

BirAdam • yesterday at 6:28 PM

Most use Linux now, and specifically RHEL. I did see some IBM z, but that was specifically for one old DB that handled oil pipeline stuff.