An electronic calculator is usually short calls that the calculator or calculator is an electronic tool that is used for the basic arithmetic operations, or complex, often with a small, portable, and affordable. Modern calculators over portable computers most of the time. However, the size of a PDA, along with a calculator, and can replace the role.Electronic calculator, the first production engine, so the Prophet's station in the decades 1960 that was created by using the calculator in the history of fiction, such as lukkhit, when about 2,000 years before Christ, and the invention of the mechanical Calculator in the 17th century, etc. An electronic calculator is developing alongside the analog computer in those days.Pocket sized calculators started to sell in the last decades, especially after 1970, Intel lopradit microprocessor slice (Intel 4004), with our business calculator (Busicom) comfort.Modern electronic calculators have a variety of sizes, ranging from cheap credit card. Free distribution to desktop size, strong There is a built-in printer. Calculator is popular in the mid 1970s due to Christian invented integrated circuit make calculators smaller and the prices are down. In the late 1990s, the price calculator, and then decreased until the level at which the general public can purchase and become a common tool in schools.Computer operating system back to an earlier version of UNIX, the program calculates the number of packaging comes with DC (dc) and language (hoc) and function hokkawa about calculating it is packaged into the category PDA Accessories for almost every type.Aside from the calculator for general purposes, it also has a calculator, designed for specific markets. For example, a scientific calculator that contains trigonometric calculations and statistics functions, etc. Some types of calculator, computer algebra can be processed. Graphics calculator can be used to draw graph of the function definition on a real number or a higher spatial dimension in the Euclid.In 1986 the number of calculators accounted for 41% of the hardware around the world that are intended for general information. This rate is lower than 0.05% low until 2007 [1]
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