In Pictures: If it ain't broke, don't fix it: ancient computers in use today

From 1970s minicomputers used for military programs (including nuclear weapons) to an IBM punch-card system still keeping the books at a Texas filter supplier, these are the computers that time forgot.

While much of the tech world views a two-year-old smartphone as hopelessly obsolete, large swaths of our transportation and military infrastructure, some modern businesses, and even a few computer programmers rely daily on technology that hasn’t been updated for decades. Here are a few stories of the computers that time forgot, and the people and institutions that stubbornly hold on to them.

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