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 While adding machines, sometimes referred to as printing calculators, may seem outdated and obsolete, they remain indispensable for offices all over the ...

Tax preparers no longer use a horse to get to work or a washtub to rinse laundry, yet many continue to keep around a once-indispensable tool that’s slowly becoming antique. “I recently thought of ...

This lever set non-printing adding machine has an plain steel case painted black. Seven steel levers painted red move in circular arcs between slots in the case. The case is painted along the edges of ...

This ten-key printing manual adding machine has an black iron and glass frame with a steel keyboard painted green. Two rows of white plastic number keys are marked with digits and their complements ...

When we talk about a “computer” today, we generally picture an electronic machine that can perform various kinds of mathematical operations, manage its program flow, move data from one place to ...