Museum of Pocket Calculating Devices

ohjeez 78 points 17 comments May 21, 2026
www.calculators.de · View on Hacker News

Discussion Highlights (10 comments)

lapetitejort

My dream is to one day own a Curta. I want to find an algorithm to approximate pi, one crank at a time. I had a chance to hold one at a vintage computer festival once. Smaller than I expected. Truly pocketable. I just had a thought. Why hasn't a Curta simulator come out for the Playdate? I guess I am cursed with creating it

cestith

I have a few pocket computers not on that page. I guess I have a new option where to donate them if I ever decide to part with them.

idatum

I have 2 listed: HP-35 and HP-41CX. Still use an HP-11c. Will die on that hill defending RPN!

zvr

As the old joke goes: "For your birthday, I wanted to get you a pocket calculator ... but then I thought you'd already know how many pockets you have."

NetMageSCW

I was really looking for watch calculators.

gregsadetsky

See also https://vcalc.net/

asdefghyk

As someone whoose first calculator was a basic Sharp (I think) 4 function model in 1975 - I admired the scientific calculators that others could afford, at that time. This site bought back memories of the early era calculators.

maxy_etc

this is the way websites should feel

TacticalCoder

We had HP ones at school, lots of fun in math classes... But then I still have my Casio FX-850P, which I probably own since 1989 or something. Last time I put batteries in it (5 years ago?) it was still working. It's in TFA : ) https://en.wikipedia.org/wiki/Casio_FX-850P It's on my desk, always visible. Next to an Atari Portfolio (the same one young John Connor uses to hack doors in Terminator 2) and a totally beaten up ZX Spectrum. Remnants of a glorious past.

ofrzeta

So the guy in Solingen/Germany (Gerhard Wenzel) is real and owns this collection but the museum is strictly online https://www.techbook.de/mobile-lifestyle/taschenrechner-samm...

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