![]() ![]() It can be operated for five hours from nickel cadmium batteries. Hewlett, president of the company, the HP-80 can perform virtually allĬalculations involving the relationship between money and time quickly and easily. While the HP-35 was designed to solve functions-such as sine, log and so on-with a single key stroke, the HP-80 solves entire equations with a single stroke.Įxecutes a specific program-including subroutines-stored in memory to solve a particular problem.Īccording to William R. The Hewlett Packard 12C (otherwise known as the HP 12C) is the classic financial calculator that has been around for 30 years. Its operation however is markedlyĭifferent. It contains hardwired programs to solve the most important equations in banking, finance, accounting, real estate and insurance.Īppearance, the HP-80 looks very much like the HP-35, the "electronic sliderule" introduced by Hewlett-Packard nearly a year ago. Intended for use by the business and financial communities. More like a computer than a calculator, the HP-80, Hewlett-Packard's latest addition to the calculator scene, contains seven read-only memories that store nearly 18,000 bits of information. " HP introduces advanced version of its model 35 In February 1973 the journal Electronic Design announced : Like the early HP-35 models, the early HP-80 models do not have the model number on the front label. ![]() ![]() It can perform complex financial calculations by the press of just one button. This was the first hand-held business & finance calculator and was the second Hewlett-Packard hand-held calculator. Has functions for business and finance calculations, such as compound interest.ĭisplay uses scientific notation, 10 digits mantissa, 2 digits exponent, red LED.ģ.6v (3x AA rechargeable cells in a battery pack). Distinctive features: The first hand-held calculator with business and finance functions. ![]()
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