Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]
7. data processing equipment

Narrower term/s

• gang punches
• keypunches
• spot punches
• summary punches

Anotations

Scope note:

Data entry devices used to produce punched cards, which enabled the input of data into early computers. These consisted of a keyboard and a mechanism to punch holes in cards in corresponding positions, representing alphanumeric symbols.