illiterate women
The cash register is important because it makes life easier by calculating change and adding tax. The cash register usually is also the device that prints reciets.
Manual accounting is the kind that a person does by means of a pen (or pencil) and paper, and (at most) an adding machine to help; computerized accounting is the kind that computers do for you, by means of spread-sheets.
simple adding and dividing
non value adding activities can not be eliminated. Waste are non-value adding activities that should be eliminated.
it can not be because it is keeping the car running not adding value
This principle makes use of a semi-automated device like calculator, electronic, typewriter, adding machine for data processing.
The adding machine is actually a calculator. but in the mid 1642's it was called an adding machine. it was used to help with mathimatics
An adding machine is a mechanical or electromechanical calculator which could perform addition and subtraction.
The first adding calculator machine was invented by Blaise Pascal.
* * === ===
abacus
$50 or less for a basic used machine that's not much more than a cash drawer and adding machine, up to $1500 + for a high end machine that will provide much of the functionality and reporting capabilities of a full blown computerized point of sale system.
It was Blaise Pascal that invented the adding machine in 1642. He invented this machine to help ease the burdens of his father who worked as a clerk at the time.
Pascal
china
Leonardo da Vinci. Experts mean the sketch does not really show an adding machine, but a ratio machine.
its register indirect with displacement.