KiB vs megabyte

KiB and megabyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
KiB	Yes	No	No	No
megabyte	Yes	No	No	No

KiB (noun)	megabyte (noun)
a unit of information equal to 1024 bytes	a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes
	a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes