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2012 METU Lecture 5 Control of Smart Systems - Department of ...

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Hard Disc Drive Description<br />

• Disk read/write heads are the small parts <strong>of</strong> a disk drive, that move<br />

above the disk platter and transform platter's magnetic field into<br />

electrical current (read the disk) or vice versa – transform electrical<br />

current into magnetic field (write the disk)<br />

• They are high-precision, high- performance machines produced in very<br />

high volumes and sold at relatively low cost.<br />

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