Preferred label
Calculators
Alternative labels
Adding machines
Automatic data processing equipment
Calculating machines
Data processing equipment
Mechanical computers
Broader term
Office equipment & supplies
Related terms
Calculator industry
Computers
Punched card systems
Weights & measures
Scope note
For present-day calculators, as well as calculators and mechanical computers of pre-1945 vintage. Search under COMPUTERS for modern electronic computers first developed after 1945.
Editorial note
Used in a note under COMPUTERS.
Change note
Formerly TGMI term.