#Hard disk drive connections Pc

However, as technology advances, the gap between heads and platters is decreasing and the speed that the platters spin at is increasing. Earlier, since the gap between the heads and the platter was relatively high, the platter surface being smooth and flat was less of an issue. This alloy is rigid, lightweight, stable, inexpensive, easy to work with and is readily available. The most commonly used material for making this physical layer is an Aluminium alloy. The substrate has no specific function but to support the media layer. The bulk material of which platters are made up, forms the base on which media layer is deposited. This complex three layered media is discussed in detail as follows: When the magnetic media is applied to the surface of the substrate material, a thin lubricating layer is applied to protect the material.

This, thin coating where actual data is stored is the media layer. On both sides of the substrate material, a thin coating is deposited by a special manufacturing technique. The platter has a core made up of aluminium or glass substrate, covered with a thin layer of Ferric oxide or cobalt alloy. Several platters are mounted on a fixed spindle motor to create more data storage surfaces in a smaller area. Platter is a circular, metal disk that is mounted inside a hard disk drive. In this way, the drive heads can reach the entire surface of each platter. As the platters spin, the drive heads move in toward the center surface and out toward the edge.

In this description, the hard drive is mounted horizontally.Д®lectromagnetic read/write heads are positioned above and below each platter. Hard disks may be mounted in a horizontal or a vertical position. Early HDDs had removable media however, an HDD today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.ДЄ Hard Disk is a sealed unit containing a number of platters in a stack. Strictly speaking, вЂњdriveвЂќ refers to the motorized mechanical aspect that is distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk.

#Hard disk drive connections Pc

The main hard disk in a PC system is where the operating system, executable programs and files are stored.ДЄ Hard Disk Drive (often shortened as hard disk, hard drive, or HDD) is a non-volatile storage device that stores digitally encoded data on rapidly rotating rigid (i.e. Hard disks (hard drives) are used to store large amounts of data in PCs, laptops and other digital systems.

2.3.9 Did You Like This Please Share With othersД¬omputer Hard Disk Drive & Major Components of a Hard Disk Drive.

2.2.5 SCSI (Small Computer System Interface Drive).

2.2.4 SATA (Serial Advance Technology Attachment Drive).

2.2.3 IDE / PATA (Integrated Drive Electronics Drive / Parallel Advance Technology Attachment Drive).

2.2 Hard Disk Drive Physical Components.

1 Computer Hard Disk Drive & Major Components of a Hard Disk Drive.