The original mechanical cash register was invented by James Ritty and John Birch, from America.
This cash register at first glance looks like an old German typewriter. Formerly, the US, UK, Germany, etc. all used cash register devices for customers at grocery stores, shops and restaurants. It was believed to use by these countries thanks to the function of gentle push buttons with the corresponding index on the numeric keyboard so that the return of change to customers became more convenient and accurate.
It can be said that this is the leading cash register of the 18th century in America. Today's modern technology researchers manufacturing technology is still based on the same basic principles as this cash register.