BTX Form Factor explores the upcoming hard drive technology, perpendicular storage.  By keeping the magnetic particles used for storage standing vertically instead of lying them on the surface, much greater storage density can be reached.  This requires a new manufacturing process that they briefly touch on as well.
“Hard Disk Drives store all our most valuable data, our contacts, email, family photos and the like, but increasingly space is getting cramped in drives… Perpendicular Hard Disk Drives aim to stem the theoretical limit of disk capacity, and this article aims to explain how and why.”

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