electronic bulletin board vs bulletin board

electronic bulletin board and bulletin board both are nouns.

Word	Noun	Adjective	Verb	Adverb
electronic bulletin board	Yes	No	No	No
bulletin board	Yes	No	No	No

As nouns, electronic bulletin board and bulletin board are synonyms defined as:

electronic bulletin board and bulletin board: a computer that is running software that allows users to leave messages and access information of general interest

Other synonyms of electronic bulletin board include bbs, bulletin board system.

electronic bulletin board (noun)	bulletin board (noun)
a computer that is running software that allows users to leave messages and access information of general interest	a board that hangs on a wall; displays announcements
	a computer that is running software that allows users to leave messages and access information of general interest