Properties of Optical Storage Systems
- Storage Capacity – It refers to the amount of data that can be stored in an optical storage system. It is directly proportional to the spot size and the geometrical dimensions of disk.
- Data Transfer Rate – It refers to the speed at which data can be read from the optical storage systems. It depends on the linear density and the rotational speed of the drive.
- Access Time – It refers to the time taken to access the desired data from the optical storage systems. It is directly proportional to the weight of head and rotation speed of the disk.
Optical Storage Systems
THe Optical memory is an electronic storage medium that uses a laser beam to store and retrieve digital (binary) data. In optical storage technology, a laser beam encodes digital data on an optical disc or laser disc in the form of tiny pits arranged in a spiral pattern on the surface of the disc. Digital Versatile Disk (DVD), Compact Disk (CD) and Blu-Ray Disk are the examples of optical storage device.
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