disc
disc
Optical disks are defined as "Write Once/Read Many" media. Some optical disk can be re-written. This is accomplished by burning the first layer smooth and writing the bit bubbles again. This can only happen a few times before the optical media is spent. Magnetic disks are defined as "Write Many/Read Many" media. This is what is needed for the continued operation of a computer over any extended duration.
Depends on manufacturer.
A spelling disk is typically used to help children practice and improve their spelling skills. It usually consists of a rotating disk with various letters or words that can be aligned to spell out different words for practice.
CD and DVD disks are used by optical disc drives.
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.
Disk storage devices are most commonly used in personal computers as a means to enhance memory. The most common are hard disk drives, optical disk drives, and even zip drives.
dvd
Optical Fiber Cable.
DVDs or CDs
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.
A CD, DVD or Blueray disk recorder player.