macintosh vs mac

macintosh and mac both are nouns.

Word	Noun	Adjective	Verb	Adverb
macintosh	Yes	No	No	No
mac	Yes	No	No	No

As nouns, macintosh and mac are synonyms defined as:

Other synonyms of macintosh include mack, mackintosh.

macintosh (noun)	mac (noun)
a waterproof raincoat made of rubberized fabric	a waterproof raincoat made of rubberized fabric
a lightweight waterproof (usually rubberized) fabric