Digital data is traditionally stored as binary code, as zeros and ones.
Now, scientists have discovered, it can be stored in the same format as our genetic information is stored—as DNA. They’ve, in fact, encoded the contents of an entire book using A, C, G, and T, where A and C both indicate zero and G and T represent one.
DNA may be the ultimate in compact storage media, one gram of which can store up to 455 billion gigabytes (the equivalent of the contents of more than 100 billion DVDs.)
It has other advantages as well.
It can be easily copied, and is often still readable after thousands of years in non-ideal conditions. Unlike ever-changing electronic storage formats such as magnetic tape and DVDs, the fundamental techniques required to read and write DNA information are as old as life on Earth.
h/t: THE GUARDIAN