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-29C was the top (and last) 20 series calculator. It had 98 program steps (with fully merged keycodes) and 30 storage registers. (16 were directly or indirectly addressable and the rest were only indirectly addressable.) The HP-19C was functionally equivalent to the HP-29C with the addition of a built-in printer and a keyboard buffer.

Free download of a color scan of the English-language book 'HP-19C/HP-29C Owner's Handbook' by Hewlett-Packard, which is an owner's manual (user's guide, operating manual, owner handbook) for the HP-19C and HP-29C calculators.

RESTORATION of an HP 29C CALCULATOR Agenda • Synopsis • Calculator acquisition –brief history • Disassembly, Photos, Identification of Integrated Circuits and Power Supply • Schematics • Troubleshooting and Diagnosis • Functioning HP 29C Calculator • Contrast and Compare Past with Present • Summary and Conclusions

2017年5月28日 · The HP-29C is the high end scientific calculator of the "Woodstock" series. Its value as a collectible can be significant and sometimes is more than 200$. For my collection of LED calculators I bought three HP-29C over the last …

2016年2月12日 · I decided to upgrade my calculator to the new HP-29C, a second-generation HP calculator with continuous memory. Earlier calculators in the first generation of HP calculators, such as the HP-35 and HP-45, lost the contents of their memories when powered off. However, the HP-29C was programmable, and a program was somewhat tedious to enter, so ...

Free download of a grayscale scan of the English-language book 'HP-29C Service Manual' by Hewlett-Packard, which is an advanced user's guide or advanced user's reference for the HP-29C calculator.

HP-29C/19C Programming. Contents: Features; Basic Programming; Programming Techniques; Advanced and Unusual Features; Features. 98 Lines of fully merged keystrokes (multi-keystroke steps require just one line) Nonvolatile program memory; 16 non-volatile primary storage registers (R0-9 & R.0-.5) Registers .0 - .5 are used by the statistical ...

The Hewlett-Packard HP 29C is a programmable calculator with 12 digits precision and RPN (reverse polish notation) logic. It has 75 functions, 30 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 2xAA NiCd battery pack.

2002年9月9日 · HP's last Woodstock model. A very cute little unit! Like all the Woodstocks very small and handy. Compared to the HP-25C it is much more powerful and overcomes all of the former's programming limitations: Twice as much program memory, subroutine calls, numeric labels, instruction insertion and deletion and more.