1) File cabinet successor 2) File holder 
A device containing one or more inflexible disks coated with material in which data can be recorded magnetically, together with their read/write heads, head positioning mechanism and the spindle motor in a sealed case. This offers high capacity data storage. Most hard disks are permanently sited in a computer.
Usually means a magnetic disk drive.
A disk that is the main storage unit of a computer and is used to store its permanent memory even when the computer itself is switched off.
A rigid disk sealed inside an airtight transport mechanism. Information stored may be accessed more rapidly than on floppy disks and far greater amounts of data may be stored. Often referred to as Winchester disks.
A data storage and retrieval device consisting of a disk drive and one or more permanently installed, precisely machined rigid disks. (WW)
A data storage and retrieval device consisting of a disk drive and one or more permanently installed disks. Increasingly common for storing sound effects and archiving for future use.
A storage device permanently installed in a computer
A storage medium for digital data which can hold more information and access it faster than a floppy disk.
hard disc, hard disk A rigid magnetic disk mounted permanently in a drive unit of a computer.
A high capacity storage device that a computer uses for programs and data, measured in megabytes or gigabytes. Information held on a hard disk is safe when the power is withdrawn.
In computing, a storage device usually consisting of a rigid metal disk coated with a magnetic material. Data are read from and written to the disk by means of a disk drive. The hard disk may be permanently fixed into the drive or in the form of a disk pack that can be removed and exchanged with a different pack. Hard disks can have capacities as h...