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The digital information is stored on the hard disk by ____________

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The digital information is stored on the hard disk by ____________

(a) Applying a suitable electric pulse

(b) Applying a suitable magnetic field

(c) Applying a suitable nuclear field

(d) By using optic waves

I had been asked this question during an internship interview.

The origin of the question is Secondary Storage in division Memory System of Computer Architecture

1 Answer

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Right choice is (a) Applying a suitable electric pulse

Explanation: The digital data is sorted on the magnetized discs by magnetizing the areas.

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