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The Future of Computers - Chemical and Biochemical nanocomputers


Chemical Nanocomputer


In general terms a chemical computer is one that processes information in by making and breaking chemical bonds and it stores logic states or information in the resulting chemical (i.e., molecular) structures. In a chemical nanocomputer computing is based on chemical reactions (bond breaking and forming) and the inputs are encoded in the molecular structure of the reactants and outputs can be extracted from the structure of the products meaning that in these computers the interaction between different chemicals and their structures is used to store and process information.

nanotubes

These computing operations would be performed selectively among molecules taken just a few at a time in volumes only a few nanometers on a side so, in order to create a chemical nanocomputer, engineers need to be able to control individual atoms and molecules so that these atoms and molecules can be made to perform controllable calculations and data storage tasks. The development of a true chemical nanocomputer will likely proceed along lines similar to genetic engineering.

nanotubes

Biochemical nanocomputers


Both chemical and biochemical nanocomputers would store and process information in terms of chemical structures and interactions. Proponents of biochemically based computers can point to an “existence proof” for them in the commonplace activities of humans and other animals with multicellular nervous systems. So biochemical nanocomputers already exist in nature; they are manifest in all living things. But these systems are largely uncontrollable by humans and that makes artificial fabrication or implementation of this category of “natural” biochemically based computers seems far off because the mechanisms for animal brains and nervous systems still are poorly understood. We cannot, for example, program a tree to calculate the digits of pi , or program an antibody to fight a particular disease (although medical science has come close to this ideal in the formulation of vaccines, antibiotics, and antiviral medications)..

DNA nanocomputer


In 1994, Leonard Adelman took a giant step towards a different kind of chemical or artificial biochemical computer when he used fragments of DNA to compute the solution to a complex graph theory problem.

DNA computer

Using the tools of biochemistry, Adleman was able to extract the correct answer to the graph theory problem out of the many random paths represented by the product DNA strands. Like a computer with many processors, this type of DNA computer is able to consider many solutions to a problem simultaneously. Moreover, the DNA strands employed in such a calculation (approximately 1017) are many orders of magnitude greater in number and more densely packed than the processors in today's most massively parallel electronic supercomputer. As a result of the Adleman work, the chemical nanocomputer is the only one of the aforementioned four types to have been demonstrated for an actual calculation.


These computers use DNA to store information and perform complex calculations. DNA has a vast amount of storage capacity that enables it to hold the complex blueprints of living organisms. The storage capacity of a single gram of DNA can hold as much information as one trillion compact discs.

2 comments:

ResearcherTony said...

Superhuman intelligent DNA programming is not only non- natural, but it is impossible for it to exist in a realm of quantum mechanics for which there ceases to have any meaning. Just as a picture painting has no meaning to the atoms of the paper. So to the information coded on the DNA cannot be understood by atoms, molecules, or the machinery the reads it. Does your computer ever "understand" anything it does, or is it just a blind function of a stupid machine. Your computer can never understand reality; it’s all an illusion - made by the programmer, mimicking the human thoughts.

The bible says the soul that sins, dies.
Adam became "a living soul".
Science shows "life" is just a label for that which can function. Death is a non-functioning label.
The mind is STORED INFORMATION - and if that information is lost / deleted, the "soul" of the person is lost too.
So the bad news is you’re a virtual "person" build on information storage and brain information processing systems, which do not always function in normal parameters. We can remove parts of the brain and so delete selected functions of the "mind".

'Let God be "true" even though ever man is a liar'

God is truly alive, but as for his physical creation, perhaps just an illusion would suffice for HOW COULD YOU KNOW THE DEEP THINGS OF GOD? AND HOW COULD YOU EXPLAIN IT WITH UNDERSTANING?

If none of this makes sense, that's OK, blood and flesh were never meant to understand even the fringes of Gods ways. If you remain the God's memory you can "live" again with rejoicing of heart. What does it matter as long as you enjoy life to the full that God has given you to life under the sun?

Ecclesiastes 9: 1-12 (try not to cry too much, you'll wet the key board).

ResearcherTony

sager said...

Very informative and well written post! Quite interesting and nice topic chosen for the post.

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