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As the original technical software partner of ACCA, [3] Wrightsoft Corp became the first HVAC software company to create a computerized version of their Manual J, Manual D, and Manual N calculation methods. The Air Conditioning Contractors of America and Wrightsoft released the very first Manual J Load calculation software (Right-J) in February ...
The Sinclair Scientific was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other calculators available at the time. The Sinclair Scientific Programmable , released a year later, was advertised as the first budget programmable calculator.
The calculator was released alongside the HP 12c 30th Anniversary Edition. This model is powered by two CR2032 batteries, and can easily be differentiated from the original model by the "Limited Edition" script below the company logo as well as the black text on brushed metal back label, as opposed to the white text on black of the original.
This is a list of calculators produced by Clive Sinclair's company Sinclair Radionics: . Sinclair Cambridge. Sinclair Cambridge Scientific; Sinclair Cambridge Memory; Sinclair Cambridge Memory %
By John Kruzel. WASHINGTON (Reuters) -The U.S. Supreme Court declined on Monday to decide whether federally mandated warnings on cigarette packs that graphically illustrate the health risks of ...
See today's average mortgage rates for a 30-year fixed mortgage, 15-year fixed, jumbo loans, refinance rates and more — including up-to-date rate news.
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