Early calculating devices including the abacus {invented 500 years ago in China}, Napier’s bone [a set of rods invented in 1614 for basic maths operations].

Early calculating devices including the abacus {invented 500 years ago in China}, Napier’s bone [a set of rods invented in 1614 for basic maths operations].

1. ERA OF CALCULATING DEVICE WELCOME TO

2. EARLY CALCULATION N E arly calculating devices including the abacus {invented 500 years ago in China}, Napier’s bone [a set of rods invented in 1614 for basic maths operations]. Presentation title 2

3. ANALYTICAL COMPUTER one of the earliest and most well – known devices was an Abacus. Then in 1822, the father of computers ,Charles Babbage began developing what whould be the first mechanical computer. And then in 1833 he actually designed an Analytical Engine which was a general purpose computer. Presentation title 3 This Photo by Unknown Author is licensed under CC BY-SA

4. CHARLES BABBAGE CHARLES BABBAGE [BORN DECEMBER 26,1791]18 October 1871 London, England- died. Presentation title 4 This Photo by Unknown Author is licensed under CC BY-SA English mathematician and inventor Charles Babbage is credited with having  conceived the first automatic digita l computer . During the mid-1830s Babbage developed plans for the Analytical Engine. Although it was never completed, the Analytical Engine would have had most of the basic elements of the present-day computer

5. EARLY CALCULATING DEVICES Early humans counted and performed simple calculation using tools such as their fingers, notches in sticks , knotted strings, pebbles etc. Presentation title 5

6. List of Early calculating devices

7. 1. ABACUS AN ABACUS IS A CALCULATING TOOL USED BY SLIDING COUNTERS ALONG RODS OR GROOVES, USED TO PERFORM MATHEMATICAL FUNCTION. Presentation title 7

8. 2. Pascaline The Pascaline was  designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644 . It could only do addition and subtraction, with numbers being entered by manipulating its dials. Presentation title 8 This Photo by Unknown Author is licensed under CC BY-SA

9. NAPIER’S BONE Napier’s bone could be assemble in different ways to multiply or divide large number by reading across the coloumns of figures. Presentation title 9 This Photo by Unknown Author is licensed under CC BY-NC

10. 3. Difference engine Charles Babbage designed two computing machines - the Difference Engine and the Analytical Engine . The Difference Engine used a method called finite differences to calculate and tabulate polynomial functions. Babbage built a portion of the Difference Engine No. 1 but the full machine was never completed. Presentation title 10 This Photo by Unknown Author is licensed under CC BY-NC-ND

11. CHARLES BABBAGE It is the type of machine which is used for  calculating the engine of a class of mechanical calculators . Leibniz calculator is known for its strong advocate in the binary system. It is also known as the first true four-function calculator. It was the first successful mechanical calculator. Presentation title 11 This Photo by Unknown Author is licensed under CC BY-SA

12. !!THERE ARE MANY MORE !! Presentation title 12

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