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Stanford Researchers Build First Carbon-Nanotube Computer

Stanford University researchers have created the first working computer built exclusively using carbon-nanotube transistors. The computer can run a basic operating system, perform calculations, and switch between multiple processes running at the same time. The announcement is significant because researchers are looking for ways to replace silicon in transistors in order to create faster processors and higher-performing computers. The first nanotube transistor was developed in 1998. Researchers worldwide have been working to overcome problems inherent in growing carbon nanotubes and ensuring that the resulting device has no flaws that would impede its use. The Stanford researchers made the system on a single wafer with 197 dies. Each die contains five nanotube computers. Each computer consists of 178 carbon nanotube transistors. The device was made with standard chip-fabrication techniques and design tools, which would make the systems suitable for production in conventional facilities. Stanford professor Philip Wong said the system is a rudimentary first step in developing this type of computer. They published their research in Nature. (The Wall Street Journal)(Stanford News Service)(Nature -- 1) (Nature -- 2) 

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