Civilisation has advanced as people discovered new ways of exploiting various physical resources such as materials, forces and energies. In the twentieth century information was added to the list when the invention of computers allowed complex information processing to be performed outside human brains. The history of computer technology has involved a sequence of changes from one type of physical realisation to another --- from gears to relays to valves to transistors to integrated circuits and so on. Today's advanced lithographic techniques can squeeze fraction of micron wide logic gates and wires onto the surface of silicon chips. Soon they will yield even smaller parts and inevitably reach a point where logic gates are so small that they are made out of only a handful of atoms. On the atomic scale matter obeys the rules of quantum mechanics, which are quite different from the classical rules that determine the properties of conventional logic gates. So if computers are to become......

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Title: Quantum Mechanincs
Approximate Word Count: 2997
Approximate Pages: 12 (250 words per double-spaced page)

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1. Quantum Mechanincs
   

   Quantum Mechanincs. Civilisation has advanced as people discovered new ways of
   exploiting various physical resources such as materials, forces and energies. ... ...