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Computer Hardware

Computer Hardware
Which device uses a DMA channel?

Sound Card
Modem
Network Card
All of the listed here

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Computer Hardware
On a dot matrix printer, you should never lubricate which part?

carriage rails
None of these
paper advance bearings
carriage bearings
printhead pins

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Computer Hardware
You see the message "invalid media device" after installing a new hard drive. What do you do next?

Format
Partition
Fdisk
Add the OS

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Computer Hardware
What problem can occur if a printer cable is to close to a power cable?

parity error
no affect
ESD Electrostatic Discharge
None of these
EMI Electromagnetic Interference

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Computer Hardware
What component would most likely cause a "parity error"?

bad software
None of these
bad RAM
bad hard disk
bad controller

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Computer Hardware
Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?

bad phone line
defective computer
software bug
defective modem
virus

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