data bus

1 definition found

data bus - Free On-line Dictionary of Computing (26 May 2007) :

  data bus
  
     <architecture> The bus (connections between and within the
     CPU, memory, and peripherals) used to carry data.  Other
     connections are the address bus and control signals.
  
     The width and clock rate of the data bus determine its data
     rate (the number of bytes per second it can carry), which is
     one of the main factors determining the processing power of a
     computer.  Most current processor designs use a 32-bit bus,
     meaning that 32 bits of data can be transferred at once.  Some
     processors have an internal data bus which is wider than their
     external bus in order to make external connections cheaper
     while retaining some of the benefits in processing power of a
     wider bus.
  
     See also data path.
  
     (1995-01-16)