The disk component of the physical structure of the hard drive

The hard disk is composed of two parts, the main disk component and the control circuit board in the physical structure. Here is the introduction of the head disk components.

The head plate is the meaning of the head and disk, and the header plate assembly includes the body, the motor, the head and other components. All parts sealed in the shell, absolutely no dust, vacuum, if the sealed shell opened, the hard drive will be void. The disk body consists of a single or multiple platters. The disc shows extremely flat and smooth, and is coated with magnetic media, which is the carrier of recording data. The Platters are more aluminum products. A platter corresponds to the upper and lower two disk surfaces, corresponding to two heads respectively. Spindle motor drives the disc to do high-speed rotation, and the disc in the high-speed rotation will not read and write data of the head contact, in the head and disc distance is quite near the case, even if there is a dust will scratch the hard drive, so this is the computer on the boot of the most taboo vibration reasons.