Image:IBM 2311 memory unit.JPG

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Description	IBM 2311 memory unit (six platters, data transfer rate: 156 kB/s), 1964.
Source	25 years of computers, La défense (Paris)
Date	26/06/2007
Author	Mikaël Restoux
Permission (Reusing this image)	GFDL & CC-by-2.5

[edit] Licensing

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