Several HP calculator emulators here, by Greg Sydney-Smith, both online and for Windows, some being ...

Hewlett-Packard HP25 emulator and e-book on inner workings of an HP29C

Unlike Casio it seems some of the old HP calculator code and emulators are available online. And despite these emulators being online in the last two years, I have bought an HP12C and an HP50g graphing calculator (because I love calculators and these emulators make me want the real thing). Casio seems to have a more aggressive attitude towards not wanting their emulators online free for use.

Several HP calculator emulators here, by Greg Sydney-Smith, both online and for Windows, some being workalikes and some running the original microcode. Also here, for sale, a massive e-book on the internals of the HP-65. And nearby, blog posts on the inner workings of the HP-29C:
http://www.sydneysmith.com/wordpress/category/hp29/
For example, here's the 25 emulator:
http://www.sydneysmith.com/wordpress/hp25u/
which you can run in-browser here:
http://sydneysmith.com/products/hp25u/run/

#HP25U #HP29C


Ed S originally shared:
Several HP calculator emulators here, by Greg Sydney-Smith, both online and for Windows, some being workalikes and some running the original microcode. Also here, for sale, a massive e-book on the internals of the HP-65. And nearby, blog posts on the inner workings of the HP-29C:
http://www.sydneysmith.com/wordpress/category/hp29/
For example, here's the 25 emulator:
http://www.sydneysmith.com/wordpress/hp25u/
which you can run in-browser here:
http://sydneysmith.com/products/hp25u/run/



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