Loading…

Flash Player 9 (or above) is needed to view presentations.
We have detected that you do not have it on your computer. To install it, go here.

Like this presentation? Why not share!

History of the calculator

on

  • 1,039 views

 

Statistics

Views

Total Views
1,039
Views on SlideShare
912
Embed Views
127

Actions

Likes
0
Downloads
9
Comments
0

1 Embed 127

http://www.fremdpltw.com 127

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    History of the calculator History of the calculator Presentation Transcript

    • History of the Calculator
      Jake Klein
      And
      Patrick Witt
    • First Calculators
      The Abacus
      One of the first calculators know to man
      Appeared in Asia Minor 2500 years ago.
      Memory Machine
      Based off the human hand because there is 5 beads
      http://www.xnumber.com/xnumber/mechanical3.htm
    • Schickard’s Machine
      Add and subtract 6 digit numbers
      Created by Wilhelm Schickard in 1623
      Used a wheel that would rotate one tenth of a full tern
      http://www.xnumber.com/xnumber/mechanical2.htm
    • Leibniz Stepped Drum
      The first machine which could execute all 4 arithmetic functions
      Created by Gottfried Wilhelm Von Leibniz in 1672
      http://www.xnumber.com/xnumber/mechanical2.htm
    • Troncets or Slide Adders
      This was a abacus but instead of using beads it was replace by a sliding bar
      Created by J.L. Troncet in 1888
      http://www.xnumber.com/xnumber/mechanical2.htm
    • William Seward Burroughs
      Created by William Seward Burroughs between 1880 and 1884
      It included a full keyboard and printing skills
      Made for the financial workers in businesses
    • Dorr Felt’s Comptometer
      Created by Dorr E. Felt in 1886
      Used a full keyboard which listed the numbers and by pushing the numbers and pulling the lever it would compute
      http://www.xnumber.com/xnumber/mechanical3.htm
    • The beginnings of the 10-key machine
      Created by James I. Dalton in 1902
      It had two rows of 5 digits in each
      Not easy to use and was time manageable
      http://www.xnumber.com/xnumber/mechanical3.htm
    • The Victor Adding Machine Co.
      Created by Carl Buehler in 1923
      The first one used a full keyboard similar to the Comptometer
      Later it was improved with printing capabilities
      http://www.xnumber.com/xnumber/mechanical3.htm
    • The First Mechanical Binary Computer
      Created by KonradZuse in 1936
      First Binary Computer
      Its memory consisted of metal plates instead of memory chips
      Consisted of 64 words in 3 storage blocks
      http://www.xnumber.com/xnumber/mechanical3.htm
    • The Curta, a Mechanical Wonder
      Created by Curt Herzstark in 1943
      It had a four function calculator close to the Guass
      It is nicknamed the pepper grinder
      http://www.xnumber.com/xnumber/mechanical3.htm
    • Microprocessor
      Created by Dr. Marcian "Ted" Hoff in 1970
      The first one was a 4 bit microprocessor
      This brought us to the calculators we know today
      http://www.xnumber.com/xnumber/mechanical4.htm
    • Timeline of Calculators
      First Calculator
      Modern Calculator
      http://www.wired.com/reviews/product/texas_instruments_ti_89_tit
    • Reference Page
      Emotional Video Unity, . (2007). Square root of 2 on the pepper grinder. Retrieved from http://www.vidoemo.com/yvideo.php?i=aGFhQ29WcWuRpckdkNms&square-root-of-2-on-the-pepper-grinder
      Redin, J. (2007, November 22). A Brief history of mechanical calculators. Retrieved from http://www.xnumber.com/xnumber/mechanical1.htm
      Redin, J. (2007, November 22). A Brief history of mechanical calculators. Retrieved from http://www.xnumber.com/xnumber/mechanical2.htm
      Redin , J. (2007, November 22). A Brief history of mechanical calculators. Retrieved from http://www.xnumber.com/xnumber/mechanical3.htm.
      Redin, J. (2007, November 22). The Calculator and the birth of the microprocessor. Retrieved from http://www.xnumber.com/history_pages/history4.htm