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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0001:  Power Supplies - System Board
      9  XV  Demanding Attention Digitally

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DMA, the PC and the AT
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 XVII  Memory Addresses
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Bus Mastering

Newer, more sophisticated circuitry unveiled the situation where the peripheral that is transferring data actually takes control of the system bus to do its duty.

This process is known as bus mastering.

This technique really shines when using a true multitasking operating system, such as NT or Windows 2000.

If you read the Geek Tip, and are wondering about conventional memory, relax. That will be covered later in this book. Right now, it is time to introduce one more topic, and now you will see why, in Chapter 0000, we spent all that time ensuring an understanding of binary and hexadecimal math.


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DMA, the PC and the AT
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 XVII  Memory Addresses
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