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Blaise Pascal invented the calculator in 1642, France
Pascal didn't invent pascals triangle, he just made It popular. A Chinese mathematician invented it in about 1015.
No individual can be said to have discovered the rules of probability. Some people that made important contributions are Gerolamo Cadarno, Pierre de Fermat, Blaise Pascal and Chritiaan Huygens.Pierre-Simon Laplace wrote what many consider to be the definitive work.
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The pascaline was a mechanical calculator devised by Blaise Pascal in 1642 and improved it in succeeding years. He made about 20 of them and several are still t found in museums, See the related link below for more information and pictures.