XI Chapter 0100: Summary
In this chapter you learned about the most commonly used data storage, the hard disk drive (HDD). You were shown the extensive history of the hard drive and how it has evolved to what it is today.
From there, you were shown how hard drives are physically constructed. You also learned about IDE and SCSI implementations of hard drives.
Next, you learned how hard drives are logically divided into tracks, cylinders, and sectors.
Finally, you learned how hard drives could be grouped together in RAID arrays that provide fault tolerant redundancy.
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