IBM announced the world’s first HDD, the 3.75MB RAMAC 350 disk storage unit, 69 years ago today — unit weighed more than a ton, 50 platters ran at 1,200 RPM | Tom’s Hardware

Posted on September 16, 2025 by dkohn96

https://www.tomshardware.com/pc-components/hdds/ibm-announced-the-worlds-first-hdd-the-3-75mb-ramac-350-disk-storage-unit-69-years-ago-today-unit-weighed-more-than-a-ton-50-platters-ran-at-1-200-rpm

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