The computer storage industry manufactures tape, magnetic, and optical storage and retrieval devices for computer systems.

NAICS 334112 applies to Computer Storage Device Manufacturing.

Storage devices are the core function and fundamentals of computers. The purpose of the storage device is to store information. If storage devices are removed from the computer, storing the information retrievals wouldn't be possible.

Sanjay Ranade has written:

'Mass storage technologies' -- subject(s): Computer software, Computer storage devices, Optical storage devices

These are secondary storage devices such as the hard disk