Optical Disc

An optical disc is a storage medium from which data is read and to which it is written by lasers. Optical discs can store much more data -- up to 6 gigabytes (6 billion bytes) -- than most portable magnetic media, such as floppies. There are three basic types of optical discs:
CD-ROM : Like audio CDs, CD-ROMs come with data already encoded onto them. The data is permanent and can be read any number of times, but CD-ROMs cannot be modified.
WORM : Stands for write-once, read -many. With a WORM disk drive, you can write data onto a WORM disk, but only once. After that, the WORM disk behaves just like a CD-ROM.
erasable: Optical discs that can be erased and loaded with new data, just like magnetic disks. These are often referred to as EO (erasable optical) disks.
These three technologies are not compatible with one another; each requires a different type of disc drive and disc. Even within one category, there are many competing formats, although CD-ROMs and DVDs are relatively standardized.

Cause of storage capacity and relatively cheapness CD and DVD becomes one of the best medium for backup purposes. Handy Backup easily performs a backup to different storages, including backup to DVD and backup to CD.

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Term of the Day

Backup Software Glossary

Current glossary explains various terms that you may come across while working with Handy Backup or other backup software.

Handy Backup is a backup utility for Windows Servers and PCs that is famous for its flexibility and ease of use.

The glossary contains 178 terms. The current section Storage Media contains 36 terms.

Other “Storage Media” Terms

  • Media
    “Media is a plural form of medium. (1) Media can be objects on which data can be stored. These include hard disks, floppy disks, CD-ROMs, and...”
  • External Storage: Keeping Backup Data outside the Computer
    “ External storage is a term for describing any data-keeping device, such as a disk or a stream tape, which is located outside the computer...”
  • MMC Memory Card
    “A flash memory card that provides storage for cellphones, PDAs and other handheld devices. Introduced in 1997 with a 4MB capacity, the 32x24x1.4mm...”

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