Computer Hardware Terms, Glossary and Dictionary

Platter, also known as hard disk platter, is a component of a hard disk drive, which may have one or more hard disk platters. Most platters require two read/write heads, one for each side. Typically made from metal or plastic, a hard disk platter is a rigid, circular disk. A thin layer of either iron oxide or another material that possesses magnetic properties coats each side of a hard disk platter.

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platter