adding machine vs totalizer

adding machine and totalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
adding machine	Yes	No	No	No
totalizer	Yes	No	No	No

As nouns, adding machine and totalizer are synonyms defined as:

adding machine and totalizer: a calculator that performs simple arithmetic functions

Other synonyms of adding machine include totaliser.

adding machine (noun)	totalizer (noun)
a calculator that performs simple arithmetic functions	a calculator that performs simple arithmetic functions
	computer that registers bets and divides the total amount bet among those who won