IDE (Integrated drive electronics)
SATA(Serial Advanced Technology Attachment)
Data stored on HDD
heads write the data to the drive,and drivers often have multiple heads to speed up the tasks of reading to the disk.A track is the area that passes under the head during one rotation of the HDD.sector device the tracks in to smaller parts.these sector are bundled in groups called clusters. A concept that is rarely used except when hard drive installation is that of cylinders.a cylinder on a hard disk drive is the space located heads at one time.
Hard disk Data transfer rate
3400rpm
4700rpm
5400rpm
7200rpm
new 10000rpm
Capacity (.. 4GB-500GB-1TB..)
