calculated by the multiple of number of sectors and number of bytes per sector. Since the storage capacity of
an optical disk is huge, the cost per bit of storage is very lo
w. Figure 2.14 provides a comparison of the track
patterns of a magnetic disk and an optical disk.
2.9.1 Storage Organization of Optical Disk
Unlike magnetic disk (which has several layers of concentric layers), an optical disk consists of single long track
in the form of spiral shape. This track starts from the outer edge and spirals inward to the centre of the disk.
The spiral shape of the track makes the optical disk suitable for storing ...
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