megabyte noun definition in Computer hardware topic from the Oxford Advanced Learner's Dictionary

megabyte

 noun: Computer hardware topic
1 a unit of computer memory or data, equal to 10 6, or 1 000 2, (= 1 000 000) bytes a 512-megabyte flash drive2 (also mebibyte) a unit of computer memory or data, equal to 2 20, or 1 024 2, (= 1 048 576) bytes