Basic Geometry
Explore the basic geometry of hard disk drives by understanding platters, magnetic surfaces, spindle rotation speeds, tracks, and disk heads. Learn how these components interact to enable persistent data storage and access on modern HDDs.
Let’s start to understand some of the components of a modern disk. We start with a platter, a hard circular surface on which data is stored persistently by inducing magnetic changes to it. A disk may have one or more platters; each platter has two sides, each of which is called a surface. These platters are usually made of some ...