Spanish Teachers

'Live' Spanish in the ANDERS residence 14 hours a day during a complete language and cross-cultural awareness training for Teachers. ......... ............ ................. ..................... ................. ................ ............. .......... ....................... ............ ............ ............ ....... ................ ....... ............. ...... . . ........

Advanc Spanish Teachers e in computing devices to 18-year-old son of a French tax collector, invented what he called a numerical wheel calculator to help his father with his duties. This brass rectangular box, also called a Pascaline, used eight movable dials to add sums up to eight figures long. Pascal's device used a base of ten to accomplish this. For example, as one dial moved ten notches, or one complete revolution, it moved the next dial - which represented the ten's column - one place. When the ten's Spanish Teachers dial moved one revolution, the dial representing the hundred's place moved one notch and so on. The. Partly by studying Pascal's original notes and drawings, Leibniz was able to refine his machine. The centerpiece of the machine was its stepped-drum gear design, which offered an elongated version of the simple flat gear. It wasn't until 1820, however, that mechanical calculators gained widespread use. Charles Xavier Thomas de Colmar, a Frenchman, invented a machine that cou Spanish Teachers ld perform the four basic arithmetic functions. Colmar's mechanical calculator, the arithometer, presented a more practical approach to computing because.