mb definition by Webster's New World
mb definition by American Heritage Dictionary
- Medicinae Baccalaureus (Bachelor of Medicine)
mb - Computer Definition
Million bytes. In computing and storage systems, a MB (MegaByte) is actually 1,048,576 (2 20 ) bytes, since the measurement is based on a base 2, or binary, number system.The term MB comes from the fact that 1,048,576 is nominally, or approximately, 1,000,000. See also byte and M.
(2) (MB) (MotherBoard) On references to basic hardware components, MB often means motherboard or mainboard.
(3) (Mb) (MegaBit) One million bits (1,000,000 bits or 1,048,576 bits). In communications, mega typically refers to 1,000,000. In storage, mega typically refers to 1,048,576. Lower case "b" for bit and "B" for byte are not always followed and often misprinted. Thus, Mb may refer to megabyte. See mega and space/time.