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Chapter 4. Bigger Is Better: Upgrading S... > Understanding Hard Disk Drives

Understanding Hard Disk Drives

Before we get into installing hard disk drives, let's take a minute to examine how a hard drive works. As you can see in Figure 4.1, a hard drive consists of multiple rigid-metal platters, stacked on a spindle inside a sealed enclosure. The spindle is attached to a motor that spins the platters at very high speeds.

Figure 4.1. The inside of a hard drive looks like this.



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