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Hard drives turn 50

Hitachi Global Storage Technologies celebrates the hard drive’s 50th anniversary by announcing that it's researchers have demonstrated a hard drive with an areal density that is more than 2.5 times the areal density of today’s highest capacity products.

The first hard disk drive – called RAMAC (Random Access Method of Accounting and Control) – was delivered 50 years ago today. RAMAC’s 5Mbyte of storage was contained in a refrigerator sized device weighing 1tonne and cost $50,000 – or $10,000 per Mbyte. Today’s leading 3.5in drives provide a Mbyte of storage for around 50cents.
Hitachi Global Storage Technologies has celebrated the hard drive’s 50th anniversary by announcing that it has achieved an areal density of 345Gbit/sq in using perpendicular magnetic recording technology. This areal density, demonstrated in laboratory testing, is said to be more than 2.5 times the areal density of today’s highest capacity products.
By the middle of next year, the company expects to have made progress on commercialising its work to the point where it will release a 1Tbyte 3.5in drive.
Hitachi believes it can achieve 345Gbit/sq in in a commercial device in 2009. This equates to a 2Tbyte 3.5in drive, a 400Gbyte notebook drive or a 200Gbyte 1.8in device.

Author
Graham Pitcher

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