Pen and paper are the thing in the past.

Burroughs billion dollar idea

William Seward Burroughs and three other men made the adding machine and form a company. It sold for 475 dollars a peice. The picture on the right was the first model of the adding machine.

Where was the birth place of the adding machine

It was in the year 1888, in Newyork city

Big image

How does it work

It made adding and subtracting easy and faster.

By puting paper in the slote then cranking the handle then type in your numbers the cranking it again then you have your anwser.

How did impact on our American socity

It made accounting alote easier and more effective. It cause a major jump in our mathmatics department. The adding machine boosted our devolping country.