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Computer Hardware

Computer Hardware
RS-232 is a standard that applies to?

Parallel port
Game port
Serial port
None of these
All of these

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Computer Hardware
After installing a sound card, the system locks up when a parallel port tape backup unit is also used. What is most likely the problem?

defective tape driver
defective LPT port
DMA
IRQ

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Computer Hardware
RTS stands for:

request to scan
ready to switch
ready to set
ready to start
request to send

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Computer Hardware
How can you totally protect a PC from damage during an electrical storm?

Disconnect all external cables and power cords
None of these
Disconnect the AC power cable
Use a surge protector
Turn off the AC power

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Computer Hardware
A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?

50Mhz
None of these
l0Mhz
100 Mhz
25Mhz

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Computer Hardware
Voltage4s measured:

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

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MORE MCQ ON Computer Hardware

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