DNK computer can compute the square root of 900

American biochemists have created a computational machine that uses DNA to square root numbers up to 900, with an interesting display solution, as the results are reported by fluorescent markers.

Computing machines that use molecules of natural hereditary material - DNA for storing and processing data - are, in addition to quantum, the second branch of computers used by engineers to circumvent the limitations of existing, classic devices.  

DNA is very promising at this time, especially in data retention. It is very persistent and, thanks to its three-dimensional structure, boasts a high density of information: eight years ago, Harvard geneticist George Church and his team wrote 700 terabytes in one gram of DNA.

Last year, Microsoft introduced the first automated molecule storage and reading machine, which is still pretty slow, with the word "hello" stored and read over twenty hours.

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