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.

HP-29C/19C. 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.)

Nov 22, 2007 · The HP-19C was one of a matched pair of high-end programmables in HP’s “20 Series” of calculators. The 19C was the printing version of the 29C, which in turn was an improvement over the similar looking 25C.

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.

Microcode emulator for the famous HP-19C ever made. It is programmable similar to the HP-29C, but includes printing. Includes everything and handles printing in MAN/TRACE/NORM mode as the original calculator does.

The HP-19C is the only handheld programmable scientific LED calculator with integrated thermal printer which HP ever built . It is the twin calculator of the HP-29C. Both are software compatible with 98 program steps and 30 storage registers and „Continuous Memory“. 3

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I used to own an HP-19C, and one time I got a powerful magnifying glass, and started looking at all sorts of things through it. The 19C being my (other) favorite toy, it was only a matter of time before I took a close look at its display, and lo!, there it was.

12 digit 7 segment red LED. The printer displays 17 columns of text. Built-in printer, continuous memory. Conversion values printed on the back of the unit for: Length, Area, Volume, Mass, Energy, Force, Pressure and Temperature. 4x AA battery pack or external DC 5V power with HP-71-type connector (HP 82059A).

The Hewlett-Packard HP 19C is a programmable calculator with 12 digits precision and RPN (reverse polish notation) logic. It has 81 functions, 31 keys, and an LED (light-emitting diode) display typical of calculators of this era.