We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Cash registers were invented to prevent stealing by store clerks. James Ritty invented it in 1884. They were not mainly adding machines, but registers of sales so the owner could keep track of what was going on. In those days, any clerk could add quickly anyway. Paper receipts were a later improvement.
They were complex mechanical machines (still are, but not mechanical). The old National Cash Register Co. (NCR) is still in business. IBM's Tom Watson started out there.
There is an interesting restaurant, Old Spanish Sugar Mill, at the Deleon Springs State park(FL) where you cook your own pancakes on the griddle at the table. For many years the owner used a mechanical cash register. Along with the antique Hobart bread mixer and stone grist mill my dad was corralled into repairing it and keeping it running for many years.
Historian Daniel Boorstin says the cash register made the Department store possible by keeping clerks honest by tracking sales and comparing inventory. Before, an owner had to watch carefully to keep clerks from pocketing a sale.
The founder of NCR, named Patterson, invented the "sales quota" and the exclusive "sales territory" both used today by many companies (IBM definitely included) with large forces of salesmen and saleswomen.
Patterson was demonic. His favorite way of informing an executive he was fired: set fire to his desk as he drove into the company parking lot.
Thomas Wolfe had an episode about an over-pressured salesman working for a large corporation. Based on NCR.