The Rebirth of the IBM 1401 Computer

An ancient machine, rescued from a garage and refurbished, now whirrs and clicks away again, just as it did way back in 1964

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Photo: Judith Haemmerle
MY MIND IS GOING, DAVE: A magnetic core memory, the rapid-access medium of the day, stored ones and zeroes in the magnetic fields of little “doughnuts” strung on crossing wires.<
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