At the far end of the room, adding machines, run by expert fingers, made a pleasant clacking.

Two women and a man were counting money at tables with adding machines.

The company soon added several new machines to its line to make automobile sheet metal parts.

Computers are fast adding machines that can store information.

This input method first became popular with accountants paper tape adding machines.

The shift to add machines into the production process made it possible to mass produce a variety of products - including cars.

Four desks down the middle of the room, with adding machines.

He only took work running adding machines or other fairly menial tasks.

Your ancestors, mere computers and adding machines, are only a few centuries older.

My mother was now at another fac-tory, helping to make things called computers, not adding machines.