Applications where re-writeable optical laser disk would be preferred over hard disks for storage are:
While storing the data in large amount, the optical disk are more preferred as, for storing the videos, photographs and various types of the images.
This optical laser disk are used for transferring the information or data from one computer to another so we can easily modify or re-write the data at any time as, this disk are more convenient than hard disk.
The optical laser disk are also helpful for distributing the software to the customers or users by using its large storing capacity features, as compared to hard disks.
It is a compact disk. Or it could be anything under optical disk drive.
The optical disk was invented in 1958 by David Paul Gregg. He created a system called the Laser Optical Storage System (LOSS) that used a laser beam to record data onto a transparent disc.
no,harddisk is not an optical storage
Magnetic storage is used on hard drives and floppy disks. Sectors of the disk are charged magnetically and are easily changed later. Optical storage uses a laser to read data. On a cd/dvd, the laser picks up tiny marks made starting in the center and rotating outward.
Optical Disk
An Optical Disk
Yes, optical disks use a laser beam to read and write data on the disk. The laser beam is focused onto the surface of the disk to detect and interpret the patterns of pits and lands that represent the data stored on the disk.
Optical use a laser to read and write data .Optical disks have very large storage capacity but they are not fast as harddisk .There are major types of optical disk 1.CD-Rom 2 Worm 3.Eraser Advantage's optical disks has a very high storing capacity ,inexpensive has along life of at least 25 years .
optical disk storage are read only so they cannot get infected. But if you burn files which are infected by viruses then the optical disks can spread the virus
use a laser to read and write data. Optical disks have very large storage capacity but they are not fast as hard disks. There are three basic types of optical disks: CD-ROM, WORM and erasable. DVD-ROM is higher- capacity disc
Optical disk
A LASER melts small holes in a layer of tantalum metal inside the disk.