We have grown accustomed to the idea that computation takes place using electronic components on a silicon substrate. Perhaps our view of computation is too limited. What if the computers were ubiquitous and could be found in many forms? Could a liquid computer exist in which interacting molecules perform computation? The answer is YES --- and this is the story of the DNA computer.
The vast parallelism, exceptional energy efficiency, and extraordinary information density inherent in molecular computers might some day prove capable of attacking problems that have resisted conventional methods (Adleman. 1994, Lipton 1995, Baum 1995, Rothemund 1996, Smith 1996, Quyang et al.,1997).
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