hypermedia vs hypermedia system

hypermedia and hypermedia system both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypermedia	Yes	No	No	No
hypermedia system	Yes	No	No	No

As nouns, hypermedia and hypermedia system are synonyms defined as:

hypermedia and hypermedia system: a multimedia system in which related items of information are connected and can be presented together

Other synonyms of hypermedia include interactive multimedia, interactive multimedia system.

hypermedia (noun)	hypermedia system (noun)
a multimedia system in which related items of information are connected and can be presented together	a multimedia system in which related items of information are connected and can be presented together