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HP-12C Type Manufacturer Introduced 1981 Cost ca. USD 70,- Calculator Entry mode () Display type Display size 10 digits CPU Processor core (HP 1LF5 / HP 1LM2 / HP 1LQ9 / HP 1RR2 / / 2AF1 ) / core ( ) / core (Atmel ) Programming Programming language(s) (fully merged) Memory register 720 ( R0 R9/ CF0 CF9, R.0 R.9/ CF10 CF19) + 5 ( n, i, PV, PMT, FV/ CF20) + 5 ( X, Y, Z, T, LAST X) Program steps 899 Other Power supply 4.5 V (3x ) or 3 V (1x or 2x ) depending on model Power consumption 0. Download Fonts Epson Ttf. 25 mW Weight 113 g Dimensions 128 × 79 × 15 mm The HP-12C is a made by (HP) and its successor as part of the. Contents • • • • • • • • • Functionality [ ] The HP-12C is HP's longest and best-selling product, in continual production since its introduction in 1981. Due to its simple operation for key financial calculations, the calculator long ago became the standard among financial professionals. Its popularity has endured despite the fact that even a relatively simple, but iterative, process such as amortizing the over the life of a loan – a calculation which modern can complete almost instantly – can take over a minute with the HP-12C. Bs 6465 Sanitary Installations Pdf Printer. The 1977 October edition of the 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 (from ) and Roy Martin that is still in use today.