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Computer Hardware

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

None of these
100 Mhz
25Mhz
l0Mhz
50Mhz

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Computer Hardware
ISDN uses _____ technology.

digital and analog
only analog
neither digital nor analog
mostly digital
only digital

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Computer Hardware
Every video card must have?

None of these
CMOS
RAM
All of these
CPU

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Computer Hardware
If the voltage on pin 1 of the power supply is not in the range of _____ volts, the PC will not boot.

50 - 110
15 - 25
44124
43952
2.5 - 5

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Computer Hardware
A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?

The keyboard connector
None of these
A second bad keyboard
The keyboard controller chip
The motherboard

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Computer Hardware
How many devices can be used on a single SCSI bus? Keep in mind that the SCSI host adapter counts as a device.

20
10
1
All of these
8

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