Saturday 27 September 2014

DNA COMPUTING

WHAT IS DNA COMPUTER?

A nanocomputer that uses DNA (deoxyribonucleic acids) to store information and perform complex calculations. Also known as parallel processing

HISTORY?

- In 1994, University of Southern California computer scientist Leonard Adelman suggested that DNA could be used to solve complex mathematical problems.

- Adelman found a way to harness the power of DNA to solve the Hamiltonian path problem (the traveling salesman problem), whose solution required finding a path from start to end going through all the points (cities) only once.

- Each city was encoded as its own DNA sequence (DNA sequence consists of a series of nucleotides represented by the letters A, T, G, C).

- The DNA sequences were set to replicate and create trillions of new sequences based on the initial input sequences in a matter of seconds (called DNA hybridization). The theory holds that the solution to the problem was one of the new sequence strands. By process of elimination, the correct solution would be obtained.

BENEFIT?
- cheap

- energy-efficient resource.

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