data system vs information system

data system and information system both are nouns.

Word	Noun	Adjective	Verb	Adverb
data system	Yes	No	No	No
information system	Yes	No	No	No

As nouns, data system and information system are synonyms defined as:

data system and information system: system consisting of the network of all communication channels used within an organization

data system (noun)	information system (noun)
system consisting of the network of all communication channels used within an organization	system consisting of the network of all communication channels used within an organization