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Next: Techniques for File System Up: Hard Disk Components Previous: Write caching

Platters And Platter Density

Over time, hard disk capacities have grown in order to meet demand for more and more space. Disk density has increased at rates of 27 percent to 60 percent per year. Disk densities are now at 600 to 700 megabits per square inch and are expected to reach 10 gigabits per square inch in two to three years. [Cor]

Barnett Hsu