CHAPTER 9. COMPUTERS AND DEVICE INTERCONNECTION1749.28-, 16-, or 32-Bit BussesA microprocessor can be characterized by the width of its internal and external buses. Thewidth of the internal bus determines the largest number that can be transferred or processedin a single clock cycle. The width of the external bus determines the number of memoryaddresses accessible by the processor. A wider bus is faster and more convenient for theprogrammer. A narrower bus is cheaper and requires simpler external hardware with fewerwires and connections.