The medium can be paper, magnetic, electronic or optical computer disc, photograph or master sample, or combination thereof.
A set of documents, for example specifications and records, is frequently called “documentation”.
Some requirements (3.6.4) (e.g. the requirement to be readable) relate to all types of documents. However there can be different requirements for specifications (e.g. the requirement to be revision controlled) and for records (e.g. the requirement to be retrievable).