Computer Hardware
After displaying the directory of a floppy disk, a different floppy is inserted into the drive. The contents of the original floppy continue to display regardless of the director requests on the other floppies placed in the drive. You remove the drive in question and install it into your test system, and it does not exhibit the problem. You should next replace the:

None of these
Floppy drive ribbon cable
System's floppy drive device driver
Original IDE controller
System's power supply

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Computer Hardware
In laser printer technology, what happens during the conditioning stage?

None of these
All of these
A uniform negative charge is placed on the photosensitive drum
The corona wire places a uniform positive charge on the paper
A uniform negative charge is placed on the toner

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