ADP system vs computing system

ADP system and computing system both are nouns.

Word	Noun	Adjective	Verb	Adverb
ADP system	Yes	No	No	No
computing system	Yes	No	No	No

As nouns, ADP system and computing system are synonyms defined as:

ADP system and computing system: a system of one or more computers and associated software with common storage

Other synonyms of ADP system include ADPS, automatic data processing system, computer system.

ADP system (noun)	computing system (noun)
a system of one or more computers and associated software with common storage	a system of one or more computers and associated software with common storage