81. Computer :: Power Consumption --  Britannica Online Encyclopedia Page Not Found. The page you are attempting to access has been moved or no longer exists. Please go to Britannica.com to explore the site. http://www.britannica.com/eb/article-235906/computer

var britAdCategory = "technology"; Already a member? LOGIN Encyclopædia Britannica - the Online Encyclopedia Home Blog Advocacy Board ... Free Trial Britannica Online Content Related to this Topic This Article's Table of Contents Expand all Collapse all Introduction Computing basics ... Transistor size changeTocNode('toc235895','img235895'); Power consumption Future CPU designs Quantum computing Molecular computing Operating systems Role of operating systems Modern types of operating systems Multiuser systems Thin systems Reactive systems Operating system design approaches ... History of computing Early history Computer precursors The abacus Analog calculators: from Napier's logarithms to the slide rule Digital calculators: from the Calculating Clock to the Arithmometer The Jacquard loom ... Other early business machine companies Invention of the modern computer Early experiments Vannevar Bush's Differential Analyzer Howard Aiken's digital calculators The Turing machine Pioneering work The Atanasoff-Berry Computer The first computer network Konrad Zuse Developments during World War II Colossus The Z4 ENIAC Toward the classical computer Bigger brains The first stored-program machines Whirlwind UNIVAC ... The age of Big Iron Programming languages Early computer language development Machine language Interpreters Compilers FORTRAN, COBOL, and ALGOL

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