jan 1, 1961 - IBM 1301

Description:

SABRE airline reservation system pioneered by American Airlines and IBM in the 1960s employed sixteen 1301 units.
comprised twenty five 24-inch disks spinning at 1,800 rpm that stored a total of 28 million characters. Multiple sliders mounted on a comb-like arm structure presented a separate head to each disk surface to improve data access speed by eliminating the delay incurred in moving a head from one disk to another
http://www.computerhistory.org/storageengine/flying-heads-improve-hdd-capacity-speed/

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