collator vs tabulating machine

collator and tabulating machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
collator	Yes	No	No	No
tabulating machine	Yes	No	No	No

As nouns, tabulating machine is a hypernym of collator; that is, tabulating machine is a word with a broader meaning than collator:

collator: a machine that selects, merges and matches decks of punch cards.
tabulating machine: an electromechanical machine designed to assist in summarizing information and, later, accounting.

Other hypernyms of collator include sorter, tabulator.

collator (noun)	tabulating machine (noun)
a machine that selects, merges and matches decks of punch cards.	an electromechanical machine designed to assist in summarizing information and, later, accounting.