Electronics & Semiconductors

New optical computing approach offers ultrafast processing

Logic gates are the fundamental components of computer processors. Conventional logic gates are electronic—they work by shuffling around electrons—but scientists have been developing light-based optical logic gates to ...


Bill Gates: Technological innovation would help solve hunger

Bill Gates says the global hunger crisis is so immense that food aid cannot fully address the problem. What's also needed, Gates argues, are the kinds of innovations in farming technology that he has long funded to try to ...

Electronics & Semiconductors

Logical switching using one single molecule

Logic gates, the basic elements of the digital world, can now be built using one single molecule. An example is XOR, with two inputs. If at least one of them is "1," then the output is "1," as well; otherwise, it is 0. These ...

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