megabyte |ˈmegəˌbīt| (abbr.: Mb or MB)
noun Computing
a unit of information equal to 2^20 bytes or, loosely, one million bytes.
megabit |ˈmegəˌbit|
noun Computing
a unit of data size or (when expressed per second) network speed, equal to one million or (strictly) 1,048,576 bits.
bit (4)
noun Computing
a unit of information expressed as either a 0 or 1 in binary notation.
ORIGIN 1940s: blend of binary and digit .
byte |bīt|
noun Computing
a group of binary digits or bits (usually eight) operated on as a unit. Compare with bit (4) .
• such a group as a unit of memory size.