and the adding machine, otherwise known as a calculator (then it was called thePascaline.?) ... The vaccum theories by Pascal, as well as Einstein are still considered today, so that goes without saying that his adding machine has part in the present as well. ... Multiplication and division were merely programmed as subdivisions of this idea. ... Computers and calculators today use that same general technique in their mathematical doings as well. ...

• Word Count: 503
• Approx Pages: 2
• Grade Level: High School

It was a calculator that you fed numbers by turning dials. ... A German man, Gottfried Leibniz added a gearing system to enable multiplication on Pascal's computer. Charles Babbage of Great Britain invented the first desktop calculator. ... In 1890 Herman Hollerith and James Powers for the census developed a devise that could read information on cards without anyone intermediation. ...

• Word Count: 911
• Approx Pages: 4
• Grade Level: High School