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A new method of data storage that converts information into DNA sequences allows you to store the contents of an entire computer hard-drive on a gram's worth of E. coli bacteria...and perhaps considerably more than that.
In a presentation on their breakthrough, the Hong Kong researchers showed how to change the word "iGEM" into DNA-ready code. They used the ASCII table to convert each of the individual letters into a numerical value (i=105, G=71, etc.), which can then be changed from base-10 to base-4 (105=1221, 71=0113, etc.). Finally, those numbers can be changed into their DNA base equivalents, with 0, 1, 2, and 3 replaced with A, T, C, and G. And so iGEM becomes ATCTATTGATTTATGT.