In telecommunication, the term record medium has the following meanings:

  1. The physical medium on which information is stored in recoverable form. For example, magnetic tape or disk.
  2. In facsimile transmission, the physical medium on which the recorder forms an image of the object, i.e., creates the recorded copy. Most commonly, a sheet of paper.

Note: The record medium and the record sheet may be identical. Synonym: record sheet.

Source: from Federal Standard 1037C and from MIL-STD-188