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Why to Do It:

A hard disk's device driver is software. It is located in a special section of the disk that is created when the disk is first formatted. Any hard disk you are now using most likely came preformatted came with a driver already on it. The driver is normally completely invisible and inaccessible to the user. Even disk-repair utilities, such as Norton Utilities, do not directly access it when making disk repairs.

The driver contains critical low-level instructions that tell the Macintosh how to initially communicate with the drive. A copy of a disk's driver is loaded into memory whenever the disk is mounted. Without the driver in memory, the disk cannot be mounted.


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