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 programmable handheld electronic ...

Pictured above is the HP 12C Financial Programmable Calculator, available from the Hewlett-Packard website for $69.99. What makes this calculator totally unique among all consumer electronic products ...

Pictured above is the HP 12C Financial Programmable Calculator, available from the Hewlett-Packard website for $69.99. What makes this calculator totally unique among all consumer electronic products ...

You’d assume that calculators would have been one of the many technological casualties of the smartphone, joining MP3 players and point-and-shoot cameras as standalone devices no one really uses any ...

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.

Macworld reports on Hewlett Packard's recent release of two iPhone app versions of classic HP calculators, the HP 12C Financial Calculator [App Store, $14.99] and the HP 15C Scientific Calculator [App ...

If you hate the iPhone’s built-in calculator and long for your old HP calculator with its programmable goodness and fancy built-in algorithms, you can now download three classic apps from the iTunes ...

A year ago, I finally added an example of the very first handheld scientific calculator – the HP 35 – to my collection. If you don’t insist on a pristine unit, they can be had for quite reasonable ...

[Jan Rychter] really likes his multiple HP-25C calculators, but the original battery pack design is crude and outdated. No problem — he whips up a replacement using Fusion 360 to design an enclosure, ...

We take wireless charging for granted with many of the gadgets we use today, such as smartphones, among others. Four decades ago, electronics like calculators were relatively new inventions, and most ...