A data medium consisting of a flat, circular plate that is rotated in order to read or write data on one or both sides. Also spelled disc , especially as in compact disc . A buffer in which data are held before being written to or after being read from a disk . A area of the main storage holding data that has recently been requested from disk or written to disk, and that are likely to be needed again. An assembly of one or more disks that can be removed as a whole from a disk drive , together with the associated rigid container from which it cannot be separated.
Techniques employed include magnetic storage and optical storage .
It may be removable or fixed permanently attached within the device. Synonymous with disk unit. Synonym for floppy disk . An assembly of magnetic disks that can be removed as a whole from a disk drive , together with a container from which it must be separated when operating. Synonym for disk drive .