(1) The speed at which data is transferred within the computer or between a peripheral device and the computer, measured in bytes per second. See
transfer rate and
space/time.
(2) The speed at which audio and video files are encoded (compressed), measured in bits per second (see
bit rate).
(3) The transmission speed of a network. For example, 100Base-T Ethernet is rated at 100 Mbps (megabits per second). Also called "bit rate." See
space/time.