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HP-19C calculator HP-29C with AC-powered battery charger. The HP-19C and HP-29C were scientific/engineering pocket calculators made by Hewlett-Packard between 1977 and 1979. They were the most advanced and last models of the "20" family (compare HP-25) and included Continuous Memory (battery-backed CMOS memory) as a standard feature.
The HP Pioneer series of calculators was introduced in 1987 based on the HP Saturn CPU; different variants of the hardware were aimed at different target markets including scientific, business and statistical applications.
The HP-16C Computer Scientist is a programmable pocket calculator that was produced by Hewlett-Packard between 1982 and 1989. It was specifically designed for use by computer programmers, to assist in debugging. It is a member of the HP Voyager series of programmable calculators. It was the only programmer's calculator ever produced by HP ...
Companies often had both device types in their product portfolio. Casio, for example, sold some BASIC-programmable calculators as part of their "fx-" calculator series (the "FX" was printed in uppercase) [13] and pocket computer the dedicated "pb-" series while Sharp marketed all BASIC-programmable devices as pocket computers.
A scientific calculator with more than 240 built-in functions, with 2 lines × 10 digits LCD. HP-12C: 1981 The finance-centric programmable calculator from the Voyager series introduced in the 1980s. The longest running product in the HP calculator line, it remains in production. Various models exist, the latest in 2008. HP-14B: 1988
The series consisted of the DM10, DM11, DM12, DM15 and DM16. [12] All calculators used the same hardware, but differ in keyboard and firmware (which can be changed with an upgrade port). After the introduction of the larger DM15L , DM41L and DM16L in 2015, the DM11L was added in January 2016 with the DM12L following in February.
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The first scientific calculator that included all of the basic ideas above was the programmable Hewlett-Packard HP-9100A, [5] released in 1968, though the Wang LOCI-2 and the Mathatronics Mathatron [6] had some features later identified with scientific calculator designs. The HP-9100 series was built entirely from discrete transistor logic with ...
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