totalizer vs computer

totalizer and computer both are nouns.

Word	Noun	Adjective	Verb	Adverb
totalizer	Yes	No	No	No
computer	Yes	No	No	No

As nouns, computer is a hypernym of totalizer; that is, computer is a word with a broader meaning than totalizer:

totalizer: computer that registers bets and divides the total amount bet among those who won
computer: a machine for performing calculations automatically

totalizer (noun)	computer (noun)
a calculator that performs simple arithmetic functions	a machine for performing calculations automatically
computer that registers bets and divides the total amount bet among those who won	an expert at calculation (or at operating calculating machines)