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In 2022, Harbor Freight Tools opened a distribution center in Joliet, Illinois, spanning 1.6 million square feet in size and creating 800 new jobs. [ 13 ] In 2023 and 2024, Harbor Freight Tools was certified as a Great Place to Work. [ 5 ]
The Cambridge had been preceded by the Sinclair Executive, Sinclair's first pocket calculator, in September 1972.At the time, the Executive was smaller and noticeably thinner than any of its competitors, at 56 by 138 by 9 millimetres (2.20 in × 5.43 in × 0.35 in), fitting easily into a shirt pocket.
Four constants are printed on the calculator case for easy reference. For converting to and from base 10 logarithms and natural logarithms, the natural logarithm of 10 (2.30259) and e (2.71828) are printed on the case. π (3.14159) and 57.2958 (180 / π) are also on the case for trigonometry calculations. There was not enough internal memory to ...
HP-19B, introduced on 4 January 1988, along with the HP-17B, HP-27S and the HP-28S, and replaced by the HP-19BII (F1639A) in January 1990, [2] was a simplified Hewlett Packard business model calculator, like the 17B.
The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...
The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics.Introduced in 1972, the calculator was produced in at least two versions with different keyboard markings; a variant called the Sinclair Executive Memory was introduced in 1973.
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