automatic teller machine vs automated teller

automatic teller machine and automated teller both are nouns.

Word	Noun	Adjective	Verb	Adverb
automatic teller machine	Yes	No	No	No
automated teller	Yes	No	No	No

As nouns, automatic teller machine and automated teller are synonyms defined as:

automatic teller machine and automated teller: an unattended machine (outside some banks) that dispenses money when a personal coded card is used

Other synonyms of automatic teller machine include ATM, automated teller machine, automatic teller, cash dispenser, cash machine.

automatic teller machine (noun)	automated teller (noun)
an unattended machine (outside some banks) that dispenses money when a personal coded card is used	an unattended machine (outside some banks) that dispenses money when a personal coded card is used