Obviously, a computer with that kind of memory is a supercomputer. But there are drawbacks. The prohibitive step right now is the scaling up of DNA computer. Ray's other concern is determining what practical role this computer will serve. My feeling is that it won't be a word processor.
Code breaking is a possibility.
Solving large problems for major businesses like telecommunications companies or airline companies who want to optimize their airline routes may want to use a DNA computer. Courtesy University of Rochester Animesh Ray Ogihara admits that DNA computers will have a viable future only if researchers can find situations in which molecular computers not only outperform digital computers, but in which digital computers would be unable to tackle the problems efficiently. This is one of the most important issues in the study of DNA computers. Not only is building the computer important, but finding problems that only it can solve is also critical. The Department of Defense already sees great potential in molecular computers.