Computer Hardware
Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because:

I/O addresses cannot conflict
there are a lot more I/O addresses than IRQs.
the BIOS sometimes has more of a problem controlling IRQs
software tends to mess up IRQs
software tends to correct I/O conflicts

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Computer Hardware
A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?

All of these
The cables are attached firmly
The external drive is turned on
The external drive has been pre¬loaded with the appropriate software
The external drive was attached before the computer was on

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