HP 12C

The HP 12C is the industry standard RPN financial calculator produced by HP. It has been in near continuous production with various hardware revisions since it’s original introduction in 1981.

HP 12C (NUT based)

HP 12C (NUT)

Introduced	1981
Successor	HP 12C (2008), HP 12C Platinum
Programming
Programming language(s)	Keystroke
Other
Power supply	3x LR44 (AG13)

HP 12C (ARM Based)

2008 model (HP 12C+)

Ιn 2008, HP revamped the 12C with the release of a new model based upon the ARM architecture. In the community, this model is generally known as the HP 12C+, due to its hardware improvements over the previous NUT based models. Internally this model uses a AT91SAM7L128, the same chip used on the HP 20b and HP 30b.

Internal view of the 2008 model

HP 12C (2008)

Other names	HP 12C+
Predecessor	HP 12C (NUT)
CPU
Processor	AT91SAM7L128
Programming
Other
Dimensions	80(l) x 128(w) x 15(h)mm

30th anniversary edition

HP 12C 30th anniversary edition

Programming
Other

2015 model

HP 12C (2015)

Programming
Other

HP 12 Platinum

HP 12C Platinum

CPU
Processor	6502 based microcontroller
Programming
Other

Gallery

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  The back panel of a 2008 model HP 12C