R disc-A recordable CD.
ROM (compact disc read-only memory) disc-An optical disc, usually holding about 650 MB, that can be read, but not written to, by the user.
A rewritable CD.
The part of a track on a disk that crosses a fixed number of contiguous sectors; it is the smallest addressable area of a disk.
The collection of tracks located in the same location on a set of hard disk surfaces.
Disk access time
The time it takes to locate and read data from (or position and write data to) a storage medium.
DVD+R DL disc
A duallayer recordable DVD
DVDROM (digital versatile disc read
only memory) disc-An optical disc, usually holding 4.7 GB, that can be read from, but not written to, by the user.
DVDRW/DVD+RW/ DVDRAM discs
Something stored on a storage medium, such as a program, document, or image.
A name given to a file by the user that is used to retrieve the file at a later time.
Flash memory card
A small, rectangular flash memory media, such as a CompactFlash or Secure Digital card.
Flash memory drive
A small drive that usually plugs into a PC's USB port and contains flash memory media.
A low-capacity, removable magnetic disk made of flexible plastic permanently sealed inside a hard plastic cover.
Floppy disk drive
A storage device that reads from and writes to floppy disks.
A named place on a storage medium into which files can be stored to keep the files stored on that medium organized.
Hard disk drive
A storage system consisting of one or more metal magnetic disks permanently sealed with an access mechanism inside its drive.
A storage medium that records data using magnetic spots on disks made of flexible plastic or rigid metal.
A plastic tape with a magnetizable surface that stores data as a series of magnetic spots; typically comes as a cartridge.
Network attached storage (NAS)
A high-performance storage server individually connected to a network to provide storage for computers on that network.
A type of storage medium read from and written to using a laser beam.
RAID (redundant arrays of independent disks)
A storage method that uses several small hard disks in parallel to do the job of a larger disk.
A storage device that is not directly a part of the PC being used, such as network storage or online storage.
A pie-shaped area on a disk surface.
A credit card-sized piece of plastic containing a chip and other circuitry into which data can be stored.
Storage area network (SAN)
A network of hard drives or other storage devices that provide storage for another network of computers.
A piece of hardware, such as a floppy drive or CD drive, into which a storage medium is inserted to be read from or written to.
The part of a storage system where data is stored, such as a floppy disk or CD disc.
hardware device containing multiple high-speed hard drives.
A concentric path on a disk where data is recorded.
Describes a medium whose content is erased when the power is shut off.