Buh-bye, hard disks! A terabyte on a postage stamp, faster and more durable than flash memory, coming soon.
The first non-volatile RAM I ever worked with (back in '72) was made with magnetic “cores” – tiny toroids with wire strung through them. These had a density of about 78 bits per cubic inch. The first versions of these new memories will have densities of roughly 2 x 1015 bits per cubic inch – a density increase of about 3 x 1013 in just 55 years. It seems unlikely that non-volatile RAM advances will keep up at that rate! On the other hand, as recently as 20 years ago I would never have guessed that I'd live to see the density of flash memory today...
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