DNA as Hard Drive

DNA can fit almost 1 billion terabytes of data into just one gram. That makes it far more efficient than any other known form of computer storage.

And it also manages to last for a long time, as can be seen in the fact that the DNA of woolly mammoths has stayed accessible tens of thousands of years after they died. Experts suggest that storing data in DNA would allow it to last for 2,000 years or more, making it far more long-lasting than traditional data storage.

But DNA remains expensive. The US start-up that Microsoft bought the DNA from charges about 10 cents for a custom DNA sequence, though it hopes to make it much cheaper in the future.

Accessing it is similarly expensive, because it relies on genetic sequencing. Costs have dropped massively - the human genome project cost about $3 billion in the 13 years it took from 1990, but would cost $1,000 now.

Microsoft says that initial trials of the technology have seen all of the data stored on it retrieved.

“We’re still years away from a commercially-viable product, but our early tests with Twist demonstrate that in the future we’ll be able to substantially increase the density and durability of data storage,” said Doug Carmean, the Microsoft partner who worked on the technology

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Fascinating.