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Winn L. Rosch Hardware Bible, Sixth Edition by Winn L. Rosch

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Background

Expansion buses are much more than the simple electrical connections you make when plugging in a lamp. Through the bus circuits, your computer transfers not only electricity but also information. Like all the data your computer must deal with, that information is defined by a special coding in the sequence and pattern of digital bits.

The bus connection must flawlessly transfer that data. To prevent mistakes, every bus design also includes extra signals to control the flow of that information, adjust its rate to accommodate the speed limits of your computer and its expansion accessories, and adjust the digital pattern itself to match design variations. Each different bus design takes it own approach to the signals required for control ...

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