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Researchers at European Bioinformatics Institute near Cambridge, UK, have sketched workable plans to encode hard data onto strands of human DNA, rather than use the magnetic tape or hard disks used by computers. "[The system] should, think the researchers, be easily capable of swallowing the roughly 3 zettabytes (a zettabyte is one billion trillion or 10²¹ bytes) of digital data thought presently to exist in the world and still have room for plenty more. It would do so with a density of around 2.2 petabytes (10¹⁵) per gram; enough, in other words, to fit all the world’s digital information into the back of a lorry."
by Orion Jones