Memory creates a dilemma for device manufacturers: no single current technology provides the speed, reliability, and robustness at a sufficiently low price to keep manufacturers and consumers happy. In the future, we may be able to move away from this paradigm toward an ideal – or ‘universal’ – memory technology. Such a universal memory would offer high density, high speed, and low energy requirements, and data would be preserved even without a power supply.

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DOI: 10.1016/S1369-7021(08)70117-2