spinning disk

A spinning disk, often called a hard drive or HDD, is a data storage device that uses a magnetic disk mounted on a motor-driven spindle. The disk spins rapidly, typically thousands of times per minute, allowing read/write heads to access different parts of the disk surface efficiently. Data is stored in magnetic areas, which can be magnetized in different directions to represent information. This design enables large amounts of data to be stored and retrieved relatively quickly, making spinning disks a common choice for computers needing reliable, high-capacity storage.