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Computer Hardware

Computer Hardware
What voltage does a Pentium system use?

+3.3 volts
+ 8 volts
+ 5 volts
None of these
+12 volts

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Computer Hardware
On a leased line installation a known good external modem shows no carrier detect light. Where is the problem most likely to be?

None of these
In the modem
In the computer
In the DTC equipment
In the phone line

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Computer Hardware
When installing an internal modem, all of the following IRQ's can be used except?

12
14
10
15

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Computer Hardware
Which of the following FRUs would be considered both an input/output device?

System board CPU
All of the listed here
SCSI host adapter
Video board

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Computer Hardware
You have a PC with no video* Which of the following is LEAST likely to be causing the problem?

low AC outlet power
crashed hard drive
defective microprocessor
defective RAM (bank zero)

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Computer Hardware
Voltage4s measured:

in parallel
after checking current
after checking resistance
after breaking the circuit
in series

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