my report

The evolution of calculator
In these days people use calculator to solve the math complicated questions or math homework and its helpful for people who aren’t that good in math. Or if you are a business man and you have a big responsibility in your work and you can’t calculate big numbers because you will be afraid to have something wrong. Even in education (school – college) students use calculators all the time to help them in math the math class. However calculator wasn’t always that easy to use. In this project we are going to see how its developed over time. And who develop it and where it happened and why.

In the early days (200BC) the Egyptians created the calculator they called it “the abacus “it was a wide wooden ladder with beads to resent ones, tens, hundreds and so on. Before 1750 years Greeks created a calculator that has a different system toward astronomic they created the first analog computer the analog computer was pretty much to know the location of the sun, moon, and other planets.

The calculator really to began to develop "in c1600 Napiers bones invented by john Napier for multiplication based on the ancient numerical scheme known as the Arabian lattice and in 1620 William dividers, which was forerunner of the slide rule" ( the evolution of calculator – Wikipedia ). After two years Willhem Oughterd invented the calculator side rule and in 1663 it was the rectilinear version in 1623 the first mechanical calculator invented by Willhem Schickard “calculating clock” he used a version of Napiers bones multiplication with a mechanical adding and subtracting calculator based on gears, with mutilated gears for different use.


In 1800-1899 there was plethora of mathematical system that included adding and subtracting, multiplication, and division in one. Then they made re models and changes so it might be easier to come up with calculations. From 20th century to the present, 1900s ( current time) calculator changed a lot even more in the method of how it work now it can do more complicated equations and it can do more than one operation at a time. Calculators also developed to be faster and easier to use. Instead of sliding breads oe punching in numbers one at a time, now you can select any number you want and it doesn’t matter if it’s a big number or a small number because it can solve even the hardest numbers.



In this project ewe have seen the early history of the calculator and know how it developed over time and what type of calculator people used b4 and after the development. And how it changed from wooden calculator that was heavy to a light calculator made from plastic that can be taken anywhere and can be used for more than one operation in time. You can even have a calculator in your computer and watch. Technology of the calculator always develops and everyday companies improve something in it because they want it to be easier for people and users.






References
Calculator - Wikipedia, the free encyclopedia. Wikipedia, the free encyclopedia. Retrieved November 19, 2011, from http://en.wikipedia.org/wiki/Calculator
Calculator Time-line. (n.d.). Vintage Calculators Web Museum. Retrieved November 19, 2011, from http://www.vintagecalculators.com/html/calculator_time-line.html
Category. (n.d.). History of Calculators - William Seward Burroughs. Inventors. Retrieved November 19, 2011, from http://inventors.about.com/library/inventors/blcalculator.htm
The History and Evolution of The Calculator | Scienceray. (n.d.). Scienceray | All That is Science, Astronomy, Biology, Chemistry, Mathematics, Physics. Retrieved November 19, 2011, from http://scienceray.com/mathematics/the-history-and-evolution-of-the-calculator
The History of Calculators. (n.d.). Math Worksheets Center. Retrieved November 19, 2011, from http://www.mathworksheetscenter.com/mathtips/calculatorhistory.html
The evolution of the Calculator/Guide to japanese calculator export suppliers. (1983). OEP, 12(6), 34-34.

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