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5MB IBM Hard Drive in 1956


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The hard drive shown above is from the IBM RAMAC 305, a tube based computer that put it's back up on 60,000 punched cards and leased for around $3200 per month.

Boeing purchased one and to this day refers to part numbers as "RAMAC Number".

quote:
Currie Munce, research vice president for Hitachi Global Storage Technologies (which has acquired IBM's hard disk drive business), stated in a Wall Street Journal interview that the RAMAC unit weighed over a ton, had to be moved around with forklifts, and was delivered via large cargo airplanes. According to Munce, the storage capacity of the drive could have been increased beyond five megabytes, but IBM's marketing department at that time was against a larger capacity drive, because they didn't know how to sell a product with more storage.


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