Mon premier blog

The Universal History of Computing: From the Abacus to the Quantum Computer Georges Ifrah
Publisher: Wiley

For a decade and a half, my colleagues and I have been building prototype quantum computers that process information at the scale of atoms and elementary particles. Ifrah, Georges (2002): The Universal History of Computing: From the Abacus to the Quantum Computer. The.Universal.History.of.Computing.From.the. Why not enlist planets, stars, and galaxies in a universal computation? Retrieved March 18, 2009, from The Museum of HP Calculators Web site: http://www.hpmuseum.org/sliderul.htm. Giant Brains, or Machines That Think. The Blog of Scott Aaronson Quantum computers are not known to be able to solve NP-complete problems in polynomial time, and can be simulated classically with exponential slowdown. Oxford English Dictionary (2 ed.). While some computers may have strange concepts “instructions” and “output” (see quantum computing), modern computers based on the von Neumann architecture often have machine code in the form of an imperative programming language. I might be wrong but my idea of a Turing machine is it was kind of a generalization and in a way simplification of already existing mechanical computers in that it didn't really think of one big set of input that determines how dozens of parts of a machine work and generates its output. A few devices are worth mentioning though, like some mechanical aids to computing, which were very successful and survived for centuries until the advent of the electronic calculator, like the Sumerian abacus, designed . It was more of a Even von Neuman's idea of storing the “algorithm” in the memory of the computer instead of hardwiring it comes from the notion of Universal Turing machine. The Universal History of Computing: From the Abacus to the Quantum Computer - Wiley - ecs4.com. The Universal History of Computing: From the Abacus to the Quantum Computer. This first post is a “reading list” for thos interested in Computer Science as well as some good self help reference material. Those who do not learn from history are destineed to repeat it! Though tiny and larger computers? The Universal History of Computing: From the Abacus to the Quantum Computer book download Download The Universal History of Computing: From the Abacus to the Quantum Computer From the I Ching to AI, tremendous . The 10 fingers, the abacus, mechanical cash registers, vacuum tube-based ENIAC, the transistor, the integrated circuit, the billion-transistor “computer chip” … then what?