Most of the enclosure is made out of a metallic alloy however the main part of a hard drive, which stores the data magnetically, is called the platter. In a hard drive there are normally several platters. Platters can store data on both sides requiring a head (reader) for each side.
The core of the platters are typically made using an aluminum or glass and ceramic substrate shaped into a disk. Then the disk is coated with a thin layer of a mostly nonmagnetic metallic alloy and on top of this is a protective carbon-based overcoat. Both of these layers are applied in the same process which is called sputtering. The next layer of the disk is a nanometer thin polymeric lubricant applied by dipping the disk into a solvent solution. The surface of the disk needs to be flawlessly smooth so that the disk head can rapidly move over the surface.
Scott
Platters: the are the storage media for the disk drive,
spindle: The spindle rotates the patters in unison,
Read/ write heads: reads or writes data,
Head arm, Actuator shaft,
Voice coil actuator: is used in many disk drives with capacities above 40MB,
Data connector: carries both the data ans the command signals from the controller and CPU to and from the disk drive,
Jumpers: are used to configure the drive as a master or slave on a shared interface, Power connector.
The data is stored magnetically. Disks are made of non-magnetic material (typically an aluminum alloy or glass) coated with a thin layer of magnetic material (a cobalt alloy for newer disks, for older ones iron oxide).
The magnetic plate on which data is stored, a read/write head, a logic board, connectors, a spindle motor, a pressure equalizer and some other parts, but these are the most important.
Circuit boards, Platters, Read/Write heads, a motor and connectors.
logical drives
Many memory drives.
hard disk,mother board
hard disk,mother board
The motherboard
host adapter
Ferrite or cobaltite crystals are within a hard disk.
No
Magnetic HARD Disk Drive constitutes of a Disk Platter, Spindle Motor, Read Write Head, Logic Card and Metal Casing with connector.
A hard disc is composed of five major components. These include the platters themselves, main spindle, arms, head stack assembly, and its case.
A computer hard disk or hard drive (fixed disk) is hardware.
computer case
non volatile (ie permament storage after power down) storage components are a DVD/CD or Hard Disk Drive
Hard Disk Drive.