Over its lifespan, the proprietary CMOS HP Nut (originally the 1LF5, then 1LM2) processor's technology has been redesigned to integrate all the circuitry into a single chip (first the 1LQ9, then 1RR2) and to refresh the manufacturing process (as the foundry could no longer manufacture the necessary chips, having moved on to making higher-density chips). There were at least eight hardware revisions of the HP-12C since 1981 (including one special issue). The 1977 October edition of the HP Journal contains an article by Roy Martin, the inventor of the simple method of operation used in HP financial calculators, which describes, in detail, the mathematics and functionality built by William Kahan and Roy Martin that is still used today. Its popularity has endured despite a relatively simple but iterative process such as amortizing the interest over the life of a loan, a calculation that modern spreadsheets can complete almost instantly, can take over a minute with the HP-12C. Due to its simple operation for key financial calculations, the calculator long ago became the de facto standard among financial professionals. The HP-12C is HP's longest and best-selling product, in continual production since its introduction in 1981. Critics claim that its 1980s technology is antiquated, but proponents point out that it is still the de facto and de jure in high finance. with newer revisions moving to an ARM processor running a software emulator of the original Nut processor. There have been multiple revisions over the years. It's HP's longest and best-selling product and is considered the de facto standard among financial professionals. as part of the HP Voyager series, introduced in 1981. The HP-12C is a financial calculator made by Hewlett-Packard (HP) and its successor HP Inc. |- Rotate-and-click keys provide confidence with each keystrokeNut core (HP 1LF5 / HP 1LM2 / HP 1LQ9 / HP 1RR2 / Agilent/ Marvell 2AF1 ) / ARM7TDMI core ( Atmel AT91SAM7L128 ) / ARM Cortex-M4 core ( Atmel ATSAM4LC2CA )ħ…20 ( R0… R9/ CF0… CF9, R.0… R.9/ CF10… CF19) + 5 ( n, i, PV, PMT, FV/ CF20) + 5 ( X, Y, Z, T, LAST X) Ĥ.5 V (3× LR44) or 3 V (1× or 2× CR2032) depending on model |- Metal screen border screen provides protection and style |- HP’s legendary quality and reliability offer you peace of mind |- First calculator in its class with probability distributions functions: a topic required in many introductory statistics classes |- Suitable for multiple courses from introductory business, finance, accounting, real estate, and banking to mathematics, science and statistics |- Intuitive keyboard layout and minimal keystrokes for many common functionsĪ great investment that can grow with your needs |- Store up to 22 numbers in memory registers for later use |- Get immediate results with no waiting for complex calculations |- View answers with up to 12 digits of accuracy |- Designed with powerful finance, business and statistical operations |- Maintains keystrokes of the HP 10bII while adding 10 types of financial and statistical calculations |- Dedicated keys provide fast access to common financial and statistical functions Whether you are a student or a practicing professional, the fast and powerful HP 10bll+ makes it easy to solve business, financial, statistical, and math calculations accurately and quickly, at a price that everyone can afford.
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