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````````````````````````The Hard Drive Driver : Caching`````````````````````````
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````The concept of the caching in MOS is simple but very effective.
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````When a block of the hard disk is read, the cache is first searched
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````If the block is not already cached, the block is read into the cache from`
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````The disk`````````````````````````````````````````````````````````````````
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````The read requested then happens to this memory location``
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`````````````````````````````````````````````````````````````````````````073/???
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