For most of human history, doing arithmetic, while sometimes aided by devices like the abacus or adders, was fundamentally an act of human intelligence. In the 17th and 18th century, a few natural ...

The Burroughs Adding Machine can still be purchased today from sites like eBay, usually for between $70 and $300, or more depending on the condition of the machine. At one point the Burroughs Adding ...

The machines are coming for our livelihoods, Dear Readers. That was the fear a century ago with the 1923 play “The Adding Machine” by Elmer Rice. And that sentiment still holds true today with many ...

This full-keyboard key-driven non-printing adding machine has a gray case. White and green plastic keys have complementary digits indicated on each key. Keys representing even digits are flat, and ...