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Nano brain
A nano brain is a conceptual device with massively parallel computational abilities, following the information processing principles of the human brain. This machine assembly would serve as an intelligent decision making unit for nanorobots. One essential feature of a nano brain is that it would acquire all sensory inputs from the external environment, and in processing that information, generate distinct instructions for every single execution unit connected to the nano brain simultaneously. Thus, the computing machine will communicate with the external world in a similar fashion to our central nervous system.
== Necessity for a nano brain ==
Computing in the 20th century was confined inside a box, or machine, called computer or supercomputer; now, several parameters around us compute, the computing has left the box stretching into the world at large (Internet of Things). Earlier, we used to have small amount of information stored in a book or server, and we used to upload and download as required. In this and to the next century, this could reverse, since, where we store information is becoming astronomically large. We need to extend computing beyond serial logic, as we did in the last century, if we don't, we could get isolated in the information domain, without getting connected to the desired point. Human brain follows pattern based computing like chaos, cellular automaton wherein millions of pixels of a particular image is processed at a time. Apparently the mechanism appears extremely slow and not accurate. However, as the complexity of information increases, it performs more credibly than the man made supercomputers. A human brain can read captcha letters in seconds, however, even a supercomputer can not do that in a finite time. A total ~1020 bits of information created by mankind in the last 5000 years, has been generated in the year 2008 alone. Exponential increment of information generates a serious challenge for command, control and processing when connectivity among these information also increases exponentially. Since software uses a sequential approach to analyze connectivity, to shrink infinite complexity into a finite limit, mechanism of processing infinite information has to be embedded inside the hardware. Nano brain is such a device that physically addresses nearly infinite possible connections in seconds, alleviating the singularity in the software. This concept has the potential to solve at least three bottlenecks of human civilization, providing necessary intelligence to the robots, executing jobs without conventional power supply and finally, resolving the many-body problems which are in abundance in nature.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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