If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time Fracture.

The early HP Reverse Polish Notation calculators have a special place in the hearts of engineers and tinkerers as there are lots of projects involving them. They haven’t been produced in decades, but ...

Since the early 1970s, Hewlett-Packard pocket calculators have proved popular with students, scientists and engineers. Most of their scientific calculators let you show more digits after the zero. For ...

The HP calculator enthusiast community has long had calculator emulators running on the PC. Now HP itself has entered the market with multiple offerings running on PCs and Apple’s iPhone and iPod ...

Back in my previous life, I was a finance guy—that’s what my undergraduate degree is in, and that’s how I made my living for many years. Through it all, one particular piece of gear was always at my ...

Hewlett-Packard has given new life to its calculator history through applications for the iPhone and Windows. They're practical, but not cheap. Stephen Shankland worked at CNET from 1998 to 2024 and ...

For math geeks, it doesn’t get better than this. Hewlett-Packard is marking the 30th anniversary of its HP 12c Financial Calculator today by launching a limited-edition version aimed at nostalgic fans ...

Hewlett-Packard (HP) today announced iPhone-app versions of three classic HP calculators: the HP 12c, HP 12c Platinum, and HP 15C. When run in landscape mode, each app uses the original ROM code and ...

Hewlett-Packard may be spinning off its PC business, but the company is still making calculators for accountants and other folks. On Tuesday evening, the company marked the 30th anniversary of one of ...

Although the calculator of the future may resemble a handheld computer, Hewlett-Packard has decided that now is not the time to merge the two. The company has pulled the plug on Xpander, a graphing ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This handheld electronic calculator, ...