The HP-41C series are programmable, expandable, continuous memory handheld RPN calculators made by Hewlett-Packard from 1979 to 1990. The original model, HP-41C, was the first of its kind to offer alphanumeric display capabilities. Later came the HP-41CV and HP-41CX, offering more memory and functionality.

From its introduction in 1979 until final production in 1990, the Hewlett Packard 41 Series Programmable Calculator reigned supreme as the trusted companion of professionals and students worldwide. Its instant success was due to innovation, quality and a well established base of loyal customers.

The HP-41C is the first Hewlett-Packard handheld calculator offering an exciting array of alphanumeric capabilities. With so many different kinds of calculator uses and applications in the world, we at Hewlett-Packard decided we could provide a significant contribution by designing and building you a quality calculator with expandable and ...

Aug 26, 2022 · With the 41 on a table/hard surface, press down on the two edges to the left of the keyboard just outside the top row of keys (upper post area), and try using [ON]+[<-]. IF it comes on, continue the pressure and try some simple operations to see if the unit is stable.

Downloadable HP-41 Programs Documentation. These programs were loaded into an HP-41C via magnetic cards or bar codes and then uploaded. At this time, no one has taken the time to rewrite the documentation for these programs as HTML pages.

Jan 6, 2022 · The HP-41C was launched in 1979 and was a quantum leap over previous programmable calculators due to its alphanumeric capabilities and unique user interface. It had 63 registers which could be divided up between program space and storage space.

There are of course reasons for the HP-15C, or the 41CX. All of these calcs are pretty hard to find for a decent price. All of them have different things that make them better for different purposes. The 15c has built in matrix functions. However, it has no output capability except to the display. But it is quite pocketable as is the 42S.

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HP-41 Library. User Documentation. Owner's Manuals Sales Literature Books Misc. HP Periodicals. HP Digest HP-65 Key Note HP Key Notes HP Journal. Software. HP Application Pacs Users' Library Solutions Users' Library USA Users' Library Europe User Code Programs Modules/ROMs - Non-HP Undocumented Modules/ROMs. Hardware.