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Computers Will Be Built By Living Cells
axxackall contributes a link to Richard Black's report on BBC suggesting that "Computers of the future will be built not by factory machines, but by living cells such as bacteria. Scientists 'have described how wires can now be made by yeast organisms, and how solar panels could be built using substances produced by sea sponges. Researchers believe these kind of technologies will be essential if we are to continue to shrink the size of electronic devices.' But 'Computers made with these natural processes are not just around the corner -- it will be many years before the technologies can be developed that far.' While scientists think about small sizes and environmental benefits, I also think if it would be possible to implant such bacteria for additional computational power in human brains -- just in case we have to upgrade them." Update: 02/17 20:23 GMT by T : I chopped out that link accidentally, sorry.
I also think if it would be possible to implant such bacteria for additional computational power in human brains -- just in case we have to upgrade them."
Uhh, screw that... Personally, I think as soon as we're technologically able, we should move away from the whole biology thing. Being in a meat body sucks sledgehammers thru a garden hose. Especially when you're considered lunch for pretty much everything on this earth that can move under it's own power, and several more that can't.
I mean, being a biological organism has hundreds of drawbacks, not the least of which is the extremely limited environment that such organisms must occupy if they want to keep working. Imagine a brain capable of working in temperatures ranging from sub-freezing to plus-boiling, rather than the what, twenty whole degrees we've got now? (ten if you're using Celsius). It frees up a great deal of flexibility for the design of new bodies, and the best part is, nothing naturally occuring on this earth would think we're tasty.
That said, and to get back on topic, I don't think we'll ever really see the day when bacteria are used to manufacture circuits. Trace sizes are already smaller than most living organisms, and they're difficult to work with at best. Plus, in the decade or so that they think it'll take to get this up and running, circuit requirements will be such that even engineered organisms are totally innapropriate for the task. In a few decades more, mass-produced nanoassembly should be the state of the art for this type of manufactured goods.