Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Innovation & Invention
Transcript of Innovation & Invention
Mr.Gearhart The original calculator was the abacus. There was no recorded time for when it was created, but we know it was in ancient times. 1620 - William Gunter creates the slide rule, the next great innovation in calculating devices. In 1623, the world's first mechanical calculator was designed by Willhelm Shickard. This was a major development of calculating devices. The next major innovation wasn't for a while. In 1872, Frank Baldwin designed the pin-wheel calculator. 1872 was also when commercially successful calculators took off. From 1900 to about 1975, there was a steady development of mechanical calculators. This included size reduction, speed, and other innovations. In 1961, there was a huge shift in the way calculators were used and how they looked. This is when the first Electric calculators were designed. They had vacuum tubes and they were produced by Bell Punch. In 1969, the first electric, hand-held, battery powered calculator was designed by Rockwell. 1978- The first solar powered calculators were designed by Sharp. The next big innovation was in 1985 by Casio. They designed the first ever graphing calculator. Somewhat like what some of you might have, just bigger. Recently, there was a innovation that has been around for a while, but not put into a calculator before. In 2011, Texas Instruments made the first LCD color calculator. "Calculator History - Invention of the Hand-held Calculator." Calculator History - Invention of the Hand-held Calculator. N.p., n.d. Web. 12 Sept. 2012. <http://www.ideafinder.com/history/inventions/handcalculator.htm>.
"Calculator Time-line." Calculator Time-line. N.p., n.d. Web. 12 Sept. 2012. <http://www.vintagecalculators.com/html/calculator_time-line.html>.
"How Calculators Work." HowStuffWorks. N.p., n.d. Web. 12 Sept. 2012. <http://electronics.howstuffworks.com/gadgets/other-gadgets/calculator1.htm>.
"Lexon Roswell Calculator With Transparent Screen." - The UberReview. N.p., n.d. Web. 12 Sept. 2012. <http://www.uberreview.com/2007/06/lexon-roswell-calculator-with-transparent-screen.htm>.
"United States Patent and Trademark Office." United States Patent and Trademark Office. N.p., n.d. Web. 12 Sept. 2012. <http://www.uspto.gov/>. Works cited