Photo Credit: History-Computer Device Name: n/a Inventor: Philip Matthäus HahnĪ Brief History: Hahn aspired to design a machine that would help him calculate the parameters of the clocks and planetariums he enjoyed making, according to the History of Computers website. Interesting Fact: The letters Schickard wrote Kepler were written in Latin, the international language of science and scholarship in Central and Western Europe until the 17th century. Schickard’s “Calculating Clock” is composed of a multiplying device, a mechanism for recording intermediate results, and a 6-digit decimal adding device. Prior to this discovery, Blaise Pascal, who developed the “Pascaline” adding machine in 1642, was regarded as the inventor of the first adding machine. Franz Hammer, a biographer of Johannes Kepler, claimed that drawings of a calculating clock had been discovered in two letters written by Schickard to Johannes Kepler in 16. Photo Credit: History-Computer Device Name: Calculating Clock Inventor: Wilhelm SchickardĪ Brief History: According to the History of Computers website, Wilhelm Schickard was credited with inventing the first adding machine after Dr. Here we share with you a visual history of some notable calculating firsts. Though still in use in today, the abacus was merely the beginning of mankind’s interest in calculating machines, which have evolved radically over the years. So human civilization invented the abacus, which the Computer History Museum suggests is “the oldest continuously used calculating tool aside from fingers.” Man had only his fingers and toes to use as counting devices - and counting sheep and crops using fingers, toes, rocks and shells will get you only so far. There once was a time when written numbers did not exist.
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