Friden calculator circa 19602/13/2023 ![]() In the past, mechanical clerical aids such as abaci, comptometers, Napier's bones, books of mathematical tables, slide rules, or mechanical adding machines were used for numeric work. The calculator has its history in mechanical devices such as theabacus and slide rule. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators. (July 2008)Ī newer graphing calculator A calculator is a small (often pocket-sized), usually inexpensive electronic device used to perform the basic operations of arithmetic. ![]() Unsourced material may be challenged and removed. Please help improve this article by adding reliable references. This article needs additional citations for verification. Jump to: navigation, search For other uses, see Calculator (disambiguation).
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |