28/6/2021 GYANSETU ALL STD VIDEO
AB (Hard Disk) A harik is made up of one or more plates of metal (or kay). These plates are covered with a layer of metal oxide. Due to which it provides the facility of storing data magnetically on the flat of the plates. Figure 1.5 shows the sample clock. Waxes and instructions are recorded by magnetizing the fixed particles on the oxide covered surface of the plates.
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