Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. information artifacts
7. [information artifacts by physical form]
8. machine-readable artifacts
9. magnetic disks

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Tools and Equipment
5. equipment
6. equipment by process
7. data processing equipment
8. computer equipment
9. peripherals
10. storage devices

Anotations

Scope note:

Digital electromagnetic storage medium comprised of a rigid disk, having a large storage capacity. For devices that hard disks are housed in, sometimes in series, and in conjunction with a read/write armature use "hard drives." To generally refer to computer data storage devices that use disk storage media, either fixed or removeable, use "disk drives."