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I still use an HP-12C financial calculator, although somewhat sporadically now. It used to be an extremely useful companion when I worked with loan processing systems some years ago.



Same here. I keep it in my briefcase inside a leather sleeve.

Very handy even when a laptop is out or during a board meeting.

Somehow for me using a calculator like that, rather than having to use screen space, or a phone …. Makes my workflow better.


> Somehow for me using a calculator like that, rather than having to use screen space, or a phone …. Makes my workflow better.

Indeed. I can't explain why, but I feel the same. I wonder about the possible reasons. The tactile response? The focus (the device has a sole purpose)?


I was distracted by the charms and features of the HP-19B for a while, but yeah, the HP-12C is my old faithful.




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