Source : WordNet®

bits per second
     n : (computer science) the rate at which data is transferred (as
         by a modem) [syn: {bps}]

Source : Free On-Line Dictionary of Computing

bits per second
     
         (bps, b/s) The unit in which {data
        rate} is measured.
     
        For example, a {modem}'s data rate is usually measured in
        {kilobits} per second.  In 1996, the maximum modem speed for
        use on the {PSTN} was 33.6 kbps, rising to 56 kbps in 1997.
     
        Note that kilo- (k), mega- (M), etc. in data rates denote
        powers of 1000, not 1024.
     
        (2002-03-23)