Hitachi’s areal densities via Perpendicular Recording
Try repeating the title 5 times and you could end up with a messy tongue !
Hitachi has just confirmed a storage density of 230 gigabits per square inch (Gb/in2) thanks to perpendicular storage. Great ! It could only mean lighter laptops and more space for my SpongeBob SquarePants cartoons .
Hitachi expects to see products shipping at 230 Gb/in2 in 2007, translating into storage capacities of up to 20 gigabytes* on Hitachi’s one-inch Microdrive and up to one terabyte on the Hitachi 3.5-inch Deskstar hard drive.
Why Perpendicular Recording is needed
One of the key challenges facing the hard drive industry is overcoming the constraints imposed by the superparamagnetic effect, which occurs when the microscopic magnetic grains on the disk become so tiny that they interfere with one another, thus losing their ability to hold their magnetic orientations. The result is “flipped bits” – bits whose magnetic north and south poles suddenly and spontaneously reverse – that corrupt data, rendering it and the storage device unreliable and thus unusable.
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POSTED IN: Announcements, Desktops, Laptops, Peripherals, Tablet PCs
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