Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. [tool and equipment components]
7. computer components

Anotations

Scope note:

Devices that house a fixed (non-removable) hard disk for storage and retrieval of digital computer data. To refer to the disks themselves, use "hard disks," to generally refer to mechanisms that use magnetic media for storage on disks, either fixed or removable, use "disk drives."