Megabyte

The megabyte (abbreviated as Mbyte or MB) is a multiple of the unit byte for digital information storage or transmission with three different values depending on context: 1048576 bytes (220) generally for computer memory; and one million bytes (106, see prefix mega-) generally for computer storage. In rare cases, it is used to mean 1000×1024 (1024000) bytes. The IEEE Standards Board has confirmed that mega- means 1000000, with exceptions allowed for the base-two meaning.