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To: Sentis
I agree DNA has inputs (Viral, mutational) I agree DNA has outputs or the express of its structure (animals,plants). DNA does not perform computational functions. DNA is a template just like a crystal.

DNA involves control flow, instructions, and stored state to produce a highly complex output from basic inputs and a complex control program (i.e. the DNA sequences, which constitute software). DNA and its software expressed as sequences constitute a full Turing Machine, capable of arbitrary computation. Actually, DNA is far more capable than a basic Turing machine.

There is strong interest in DNA computation in areas of theoretical computer science because classes NP-complete problems can be solved in polynomial time using DNA.

By your definition, a word-processing program is "just a template" for production of a wide variety of documents stored in a common format, given a sequence of keyboard and mouse inputs. According to your definition, there is no actual computation.

426 posted on 02/17/2003 12:19:52 PM PST by captain11
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To: captain11
Yes, a complete DNA system does indeed qualify as a Turing Machine.

What is with today's Evolutionists, that they must continuously deny modern science's known facts about DNA?

428 posted on 02/17/2003 12:37:40 PM PST by Southack (Media bias means that Castro won't be punished for Cuban war crimes against Black Angolans in Africa)
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To: captain11
Quote "By your definition, a word-processing program is "just a template" ."

Yes it is a template the word processing program is a misnomer it processes nothing as it is merely a template it requires a computer processor to function. It also will not function without outside input nor will the program itself do the processing. Your DNA computers do not process the information they merely store information fed into them by human programmers. It takes human intervention to process this information.

DNA nor crystals need this sort of processor to function as they are not computer programs but merely natural chemical reactions acting in accordance to natural stimuli. If they resemble programs it is because any system that encodes information within itself must to it within the rules of this physical universe. Therefore information must be coded in a uniform way. In DNA information is coded by 4 amino acids in crystals the information is encoded into strings of carbon molecules. You may use DNA as a computational tool but that is not what it is.
432 posted on 02/17/2003 12:53:59 PM PST by Sentis
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