Magnetospirilllum magneticum University of Leeds
Using Magnetic Bacteria To Construct The Biocomputer Of The Future -- Popular Science
As computer components grow smaller and smaller it becomes more and more difficult to manufacture them by conventional means, meaning the nano-hard-drives of the future are going to come at a cost. So researchers from the University of Leeds in the UK and Tokyo University of Agriculture and Technology are enlisting the help of magnetic bacteria, which they say can be harnessed to build tiny computing components similar to those found in conventional PCs, or even to construct the biological computers of the future.
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My Comment: Talk about small .... correction .... very small.