olemus
ISO/IEC 10027, ISO/IEC 27037:
vahend, millel saab jäädvustada digitaalseid andmeid

rekordinäiteid
https://www.technologyreview.com/s/424669/and-the-longest-running-digital-storage-medium-is/

http://www.guinnessworldrecords.com/world-records/412399-most-durable-digital-storage-medium

https://www.pcmag.com/article2/0,2817,2414627,00.asp