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IBM has a new form of memory that could replace both traditional hard disks and flash disks because it will be cheap/fast/rugged:
IBM Research Spins ‘Racetrack’ Nano-Magnetic Memory
From the article:
IBM’s goal, based on spintronic patents filed as early as 2004, is to use the same square micron that currently houses a single SRAM memory bit, or 10 flash bits, and drill down into the third dimension to store spin-polarized bits on a sunken racetrack-shaped magnetic nanowire. Using an area of silicon 1 micron wide and 10 microns high, IBM said its first-generation racetrack would store 10 bits compared to one, thereby replacing flash memory. Eventually, it could store 100 bits in the same area, which is dense enough to replace hard-disk drives.
This video explains how it works:
[[[See previous invention]]]
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