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Calculators have changed drastically the first calculator was an abacus. The Arithmometer (1820) was for add, subtract, multiply, and divide. The Odhner (1875) was made by Odhner who invented a pinwheel calculator which used a hand crank to complete the computation. The Comptometer (1885) was made by Felt, he invented the first calculator using keys to push for number entry and calculations. The Standard calculator (1901) was made by Hopkins who used two rows of five buttons representing the digits 0 through 9 to perform math computations. The standard ten digit keyboard (1911) we use today was made by Sundstrand who brought the design from Sweden to the United States. The first commercial calculators (1914) began entering businesses and the use of calculators began to be popular. We have been modifying calculators a little at a time since then.
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Which kind of graph would you use to show how the price breed has changed over time?
Line chart
Disadvantages of calculators?
The disadvantages of calculators is that they are no longer practical or convenient. Unless scientific in nature, most people use the calculators on their smart phones and wireless devices. While stand alone calculators are still in use, their popularity has immensely decreased across the nation.
What are calculators used for?
Calculators are used to calculate, or solve math problems to come up with solutions.Hope that helped!
Where are calculators made?
china
What is the difference between a graphing and scientific caculator?
Graphing calculators have the ability to see a visual representation of graphs and equations. Scientific calculators have less features and can only perform numerical mathematical equations. Graphing calculators cost around $90 while scientific calculators can be found for under $10.
