Megabyte

The megabyte (symbol: MB or Mo, also known as the megaoctet) is a unit used when talking about hard drives or computer memory. One megabyte is 1 million bytes or 1 thousand kilobytes.

Until December 1998, when the International Electrotechnical Commission (IEC) first defined the mebibyte as 220, or 1,048,576 bytes. Casual computer users still often use the megabyte to mean the mebibyte.

One thousand megabytes make one gigabyte.

This definition is part of the International System of Quantities.

Category:Units of information