my Hewlett-Packard HP-12C financial calculator. From tests during undergraduate school up through my career change in 2005 to full-time Macworld employee, my HP-12C was with me every step of the way.

So the shocking discovery of an apparently rogue HP-12C has sent tremors through the calculator aficionado world.… The HP-12C ...

There aren’t many tech products that stick around for 30 years and remain virtually unchanged, but HP’s 12c financial calculator has, and it’s still in demand. Designed for dealmakers ...

It still works well, and you like it just the way it is. The device in question is the HP 12c calculator, first launched exactly 30 years ago today, on September 1, 1981. Ever since, without much ...

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 ...

Hewlett-Packard is marking the 30th anniversary of its HP 12c Financial Calculator today by launching a limited-edition version aimed at nostalgic fans. While the company hasn’t won praise for ...

HP introduced RPN calculators way back in the early 1960s. In the 1980s, HP released its best-known version, also called the HP 12C. As of last year, HP was still producing nine calculators for ...

Behold: The HP 12c Financial Calculator 30th Anniversary Edition. Above you see the 30-year old original (left) and the new version, side by side. The tiny calculator was used by bean counters who ...

HP developed microprocessor emulators for both host platforms. HP 35s calculator emulation running on a PC The original HP 12c and HP 15c calculators were based on HP’s proprietary 4-bit Saturn Nut ...

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HP’s longest and best-selling calculator. The HP-12C sold today acts and looks just as it did when first introduced in 1981, with the exception of improved performance due to modern components.