Computer Hardware
You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

EMI
FYI
IOU
EXE
RFI

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Computer Hardware
Suppose that you have a the maintenance package identifies several possible field replaceable units (FRUs) that will resolve the problem. What should you do after turning the power off?

Replace the indicated parts, one at a time in the recommended sequence, until the problem is resolved; return unused FRUs to stock
Follow the same procedure as in ays replace the system board first if it is on the list of possible FRUs If multiple FRUs are indicated, then software is the most likely source of the problem
None of these
Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved

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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:

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

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