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mariarad [96]
3 years ago
12

What is a symptom of a failing power supply? The display has only a blinking cursor. The computer displays a POST error code. Th

e power cord will not attach properly to either the power supply or wall outlet or both. The computer sometimes does not turn on.
Computers and Technology
1 answer:
Mariulka [41]3 years ago
7 0

Answer:

A sympton of a failing power supply is The computer sometimes does not turn on.

Explanation:

All right, the power supply is the terminal that receives electric current to process it and distribute it to the different parts of the hardware that compose the computer. When it fails, the current is not distributed and doesn't reach the different pieces of hardware. Therefore, option D) is the correct one. Another error that could be related is the malfunction of fans but it could be related to wires more than the power itself.

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DMA controllers ____.A) do not utilize an additional, special purpose, processorB) are a nonstandard component in PCs of todayC)
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Answer:

D) can access main memory at the same time as the main CPU

Explanation:

DMA is short for Direct Memory Access, these controllers allow the device to transfer data directly to and from the memory modules without interfering with CPU processes. Therefore it can access main memory at the same time as the main CPU. Thus freeing up CPU processing power for other tasks while also retrieving the data necessary.

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-ASIAX ·<span>Frequent Answerer</span>
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