Registers that keep track of how much should be in the till, based on the day's sales, those have been around quite a long time. NCR got big enough in 1912 that

Registers that keep track of how much should be in the till, based on the day's sales, those have been around quite a long time. NCR got big enough in 1912 that they had antitrust trouble. Their big selling feature was tracking the till. https://www.asc.ohio-state.edu/economics/pdf/marvel/ncr.pdf https://www.asc.ohio-state.edu/economics/pdf/marvel/ncr.pdf