The First Magnetic Hard Disk
The world’s first hard disk drive was the size of two kitchen refrigerators set side by side.
It contained 24 disks spinning at 1,200 revolutions per minute, supplying data at 100,000 bits per second. It was the IBM RAMAC (Random Access Method of Accounting and Control), and it allowed enterprises to think about data in new ways—mixing and matching it on the fly, allowing each bit of information to be read or changed randomly.
Along with IBM’s magnetic tape drive, the 1956 release of RAMAC essentially launched the data storage industry.
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