HARD DRIVE PARTS

THERE ARE MAINLY FOUR PARTS
1)SATA (Serial Advanced Technology Attachment)
2)PATA (Parallel advanced technology attachment)
3)SCSI (Small Computer System Interface)
4)SSD (Solid-state drive)

SATA:-

SATA drives are Serial ATA drives.They use a completely different connector than the PATA drives. In addition, SATA drives use a different power adapter than IDE drives, though adapters are easily attainable. SATA drives are thinner and supposedly have a faster data interface than PATA drives. However, this speed difference is often no distinguishable in PATA and SATA drives of the same rpm rating. SATA drives are more
efficient, though, and use less energy than the PATA drives.

PATA:-

A stands for Parallel Advanced Technology Attachment and is also known as an IDE drive.
The labels refer to the type of interface used to connect the hard drive to the motherboard.IDE drives use either a 40 or 80 wire cable with a wide 40-pin connector. Older, slower drives use the 40 wire cable, while faster drives use the 80 wire cable. Many PATA drives are being replaced with SATA drives.


SCSI:-

SCSI, Small Computer System Interface drives,have a similar took to IDE drives. However, SCSI drives typically spin at a higher rate than IDE or SATA drives Where IDE and SATA drive normally spin at 7,200 rpm. SCSI drives spin at 10,000 to 15,000 rpm. There are
some SATA drives now,It all are describe as showing in figure...

SSD:-

Solid state drives, unlike PATA, SATA or SCSI drives, do not use moving parts. Normally drives use a spinning magnetic disk that stores information. However, solid state drives use semi-conductors. Because there are no moving parts, solid state drives are faster and are less likely to break down than other drives. Data access is near instant. These drives are currently more expensive than other drives.