dashboard vs control board

dashboard and control board both are nouns.

Word	Noun	Adjective	Verb	Adverb
dashboard	Yes	No	No	No
control board	Yes	No	No	No

As nouns, control board is a hypernym of dashboard; that is, control board is a word with a broader meaning than dashboard:

dashboard: instrument panel on an automobile or airplane containing dials and controls
control board: electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices

Other hypernyms of dashboard include board, control panel, instrument panel, panel.

dashboard (noun)	control board (noun)
instrument panel on an automobile or airplane containing dials and controls	electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices
protective covering consisting of a panel to protect people from the splashing water or mud etc.