Which adding machines for your office are best? While adding machines, sometimes referred to as printing calculators, may seem outdated and obsolete, they remain indispensable for offices all over the ...

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 ...

The first line of "Adding Machine: A Musical" asserts, "In numbers, all truth can be revealed." While the play does more to alter the audience's perception of how the world works than to actually ...