This 1942 ad for a comptometer is just perfect because first of all, I had no idea what a comptometer was (a mechanical calculator, basically) and second, the spec sheet is wonderful: no glare dials, ...

About this time 130 years ago, Dorr Felt, of Chicago, invented the Comptometer. I learned that while looking up something else. A major method of learning interesting things is to look up something ...

You've got to give Hi Tech Systems some credit for effort: to help their broadcast video controllers stand out at a recent industry expo, they put together the Comptometer, a Steampunk-styled console ...

This full-keyboard non-printing adding machine represents the successful adoption of mechanical aids to computation by American scientists. It was one of several computing devices owned by the ...

Q: I was wondering what happened to the Allentown Comptometer School that was directly across from Hess’s Department Store? I don’t even know what a Comptometer was, but I remember the school. A: The ...

This story was submitted to the People's War site by the Dunstable At War Team on behalf of the author and has been added to the site with her permission. The author fully understands the site's terms ...

IN acceding to the editor's request to contribute an article to NATURE upon this instrument, I should like at the outset to express the feeling of curiosity with which any one, familiar with the many ...

SIR – I can well remember comptometers (Letters, March 31). I worked for London Transport in the 1960s in their office at the old Hillingdon Station. There were about 48 women in eight sections and ...

If you build a specialized type of hardware which, by design, rarely arouses emotions of physical desire in the general populace, you can see how you might have a bit of a challenge promoting your ...

This key-driven, non-printing adding machine is an early example of a Comptometer with a metal case. It has eight columns of plastickeys. The keys in the two rightmost columns, which represent cents, ...

This story was submitted to the People's War site by the Dunstable At War Team on behalf of the author and has been added to the site with her permission. The author fully understands the site's terms ...