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Published on Jul 9, 2008
In March 2005, Hitachi Global Storage Technologies demonstrated an areal density of 230 gigabits per square inch (Gb/in2) on perpendicular recording technology, the highest areal density achieved to date based on vertical recording. This accomplishment represents a doubling of today's highest data densities on longitudinal recording technology. Hitachi presents its perpendicular storage strategy in the style of Schoolhouse Rock.