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Computer Hardware

Computer Hardware
You are testing the resistance in Ohms of a fuse on a 5 amp system. If the fuse is good, the meter should read?

0.5
All of these
None of these
5

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Computer Hardware
How many DMA channels are in an AT-machine?

None of these
8
3
7
4

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Computer Hardware
What beep codes could indicate a system board or power supply failure?

All of these
steady long beeps
one long continuous beep tone
steady short beep
no beep

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Computer Hardware
Which DOS driver is used to emulate expanded memory?

Mem386.sys
EMM386.exe
Ramdrive.sys
Himem.sys

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Computer Hardware
After you service a laser printer, you notice dirty print. Which of the following would correct the problem.

Run several blank pages
Clean the developer tank
Clean the laser diode
Reset the printer
None of these

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Computer Hardware
Suppose that the power lamp in on, but the printer will not print. What can you do to correct the problem?

Replace the ribbon
Turn the printer on and off
Replace the AC line fuse
Make sure the printer is on line

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