The joint international team comprehensively reviews 'multi-state memory' data storage, which steps 'beyond binary' to store more data than just 0s and 1s.

In their paper, “Length-based Encoding of Binary Data in DNA,” which was published by the American Chemical Society, the researchers showed that it is possible to store 750 megabytes of data ...

As a result, instead of data being stored via two-state binary code, it can be stored via a three-state ternary code in which the absence of an indent is a 0, a 0.3- to 1.0-nanometer-deep indent ...