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Bus Mastering
Bus mastering allows expansion cards to communicate directly with
other devices without having to go through the CPU. Bus mastering allows
the expansion cards to read or write directly from another device. For
example, if one of your cards needs to store some information on the hard
drive, it doesn't have to request the CPU to perform the operation. Bus
mastering introduces a large increase in performance for expansion cards.
Therefore, the more bus mastering devices, the faster the bus is capable
of operating.
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