alt.hn

5/21/2026 at 3:50:04 PM

Museum of Pocket Calculating Devices

https://www.calculators.de/

by ohjeez

5/21/2026 at 5:41:34 PM

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

by lapetitejort

5/21/2026 at 6:24:26 PM

The Curta is the ultimate calculator to own. I wish someone was still making modern replicas, but it seems that it's just too complex or at least too complex to bother with. So we're stuck with scavenging the ones that are still working off of individuals. I hope to buy one someday if there's still any supply of them left on the used market.

by tavavex

5/21/2026 at 7:45:42 PM

I was really looking for watch calculators.

by NetMageSCW

5/21/2026 at 6:41:48 PM

I have 2 listed: HP-35 and HP-41CX.

Still use an HP-11c.

Will die on that hill defending RPN!

by idatum

5/21/2026 at 6:31:43 PM

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.

by cestith

5/21/2026 at 7:09:15 PM

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."

by zvr