Oh, That's Near Enough  

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Jenis: Article from Bulletin/Magazine
Dalam koleksi: The Economist (http://search.proquest.com/) vol. 403 no. 8787 (Jun. 2012), page S3-S4.
Topik: Energy Efficiency; Miniaturization; Microprocessors; Technological Change; Nanotechnology; Research; Computer Science

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Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.72 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Transistors now measure as little as 22 nanometres (billionths of a metre) in width, smaller than the wavelength of light with which they are etched, and just a few tens of atoms across. As transistors get smaller, keeping them cool and error-free becomes more difficult. Lowering the voltage at which transistors operate produces less heat, but further reductions are now difficult because feebler voltages result in more frequent errors. The march towards ever-smaller and faster chips "is starting to come unglued", says Dr Mudge. That is why he and other computer scientists are taking a new approach: designing microchips that can tolerate errors in their operation. Such inexact or "sloppy" chips, as they are also known, can be smaller, faster and more energy-efficient.

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