1956 - IBM unveils the IBM 305 RAMAC. The computer is capable of - TopicsExpress



          

1956 - IBM unveils the IBM 305 RAMAC. The computer is capable of storing 20MB of data via the RAMAC (random access method of accounting and control) drive. The drive has fifty double-sided two-foot diameter disks or “platters,” each operated by an arm and one read/write head. Each disk has a capacity of about 5MB each with a transfer rate is 8800 characters per second, and each drive costs US$50,000.
Posted on: Fri, 13 Sep 2013 14:35:27 +0000

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