Calculator Navigate to: previous, Jump to (Calcium)Next (Caleb)A simple calculator A calculator is a device used for making calculations . Modern calculators often incorporate general-purpose computing systems, however, they are usually designed to execute specific functions. For instance, graphing calculators focus on graph-centered math like trigonometry, statistics and so on. Furthermore, modern calculators tend to be more portable than most computers even though some personal electronic assistants (PDAs) are comparable in terms of size to hand held calculators. As calculators are tiny, in the future, devices that are smaller than credit cards can perform the similar calculations as today's large scientific calculators. Another option is similar to a handheld computer which has notations that are not entered by buttons, but rather written on screens. This would mean that the requirement for buttons could be eliminated , and the size of the device will be reduced...
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