Disk is composed of cylinders.
Each cylinder is composed of disk sectors.Different Drives have different number of sector sizes.
For example
if a hard disk of Samsung has 2000 cylinder each of which consist of 16000 sectors .
Each sector size is 512 byte.
There fore the size of one cylinder is
The more the size of cylinder the more the disk performance.For example Samsung disk with one cylinder size 8 Mb will give better performance than Western Digital of 4mb per cylinder size.
Each cylinder is composed of disk sectors.Different Drives have different number of sector sizes.
For example
if a hard disk of Samsung has 2000 cylinder each of which consist of 16000 sectors .
Each sector size is 512 byte.
There fore the size of one cylinder is
16000 * 512 byte =16000 * 1/2 kb (as 512byte is a half kilobyte)= 8000 k = 8 Mb (approx).
There for the size of hard disk is 8 Mb* 2000 =16000 Mb = 16 Gb.The more the size of cylinder the more the disk performance.For example Samsung disk with one cylinder size 8 Mb will give better performance than Western Digital of 4mb per cylinder size.
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