I routinely use it's HP-41CV on my desktop. To me the Hp-41 represented a breakthrough in programmability.
The RPN user interface of these calulators was also highly superiour entry mode. Sort of the Beta of the Beta VHS shakedown. The superiour solution that lost to a larger marketing budget...
Wow, so cool to see the photo with an actual HP-25. I bought one in high school (massive outlay at the time) and loved it. Used it all through college.
only tangentally related you can get a free emulator of their newest calculator the hp prime g2 here https://www.hpcalc.org/details/8939, it's excellent and blazing fast. I'm taking some college classes right now and needed a non-internet-capable calculator. I've barely cracked what it can do, my last physical calculator was a TI-92 before the banned them on everything.
A more mature s/w emulation of many HP classic calulators is at:
https://nonpareil.brouhaha.com/
I routinely use it's HP-41CV on my desktop. To me the Hp-41 represented a breakthrough in programmability.
The RPN user interface of these calulators was also highly superiour entry mode. Sort of the Beta of the Beta VHS shakedown. The superiour solution that lost to a larger marketing budget...
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