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The first commercially produced portable calculators appeared in Japan in 1970, and were soon marketed around the world. These included the Sanyo ICC-0081 "Mini Calculator", the Canon Pocketronic, and the Sharp QT-8B "micro Compet". The Canon Pocketronic was a development from the "Cal-Tech" project.
Canon entered the computer industry in the 1970s, [1] starting with the AX-1 in October 1978. It sported the form factor of a desktop calculator and was fully programmable. [2] [3] This was followed up with the AS-100 in 1982, which was a more-traditional albeit heavier personal computer that ran a Intel 8088 and ran MS-DOS.
A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.
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Canon produced a range of calculators in various applications, including handheld calculators, desktop calculators, printing calculators and scientific calculators. One model was the 1964 Canola 130. It had 13 digits, a result of marketing research. The reason for the odd number of figures was based on selling it to the Japanese central bank.
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A pocket computer is a class of handheld computer characterized by very short displays (typically accommodating only one or a handful of lines of text) and calculator-style alphanumeric keypads. Pocket computers occupy a small footprint, allowing the unit to be comfortably stashed in one's pocket when on the go, and usually weigh less than 1 ...