A metric prefix denoting 1,000,000 (one million, or 106) units. In computing, mega- refers to 220, and one megabyte (MB) of storage is approximately equal to one million bytes of data (actually 1,048,576 bytes). See Metric Prefix. See also Kilo-, Giga-, Tera-, Peta-, and Exa-. Mega- is usually abbreviated M.
|