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.
Answer:A
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.
Explanation: <numeric> The digital data is sorted on the magnetized discs by magnetizing the areas.