hard disk

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Related to magnetic disk: floppy disk, hard disk, raid

hard disk

a computer data storage medium that consists of a rigid disk with an electromagnetic coating allowing information to be transcribed onto and from it. Permanently mounted in a dust-proof container, a hard disk has a storage capacity many times that of a diskette. Also called hard drive. Compare diskette.
References in periodicals archive ?
When you want to access a file on an optical disk, the request goes right to the hierarchical storage server, since all directory information is still on the system's magnetic disks.
This is in contrast to the story in magnetic disk where the areal density growth has slowed significantly with the associated slow down in the improvement in its cost of storage metric.
Linear tape cartridges have begun to mirror the >60% annual areal density growth rate of magnetic disk systems over the last decade through two key breakthroughs.
It is likely that the rate of increase for magnetic disk areal density will start to drop below historical rates annually, due to the greater difficulty in making the new technology work.
As a non-volatile optical technology with an extremely long life, UDO requires no proactive media maintenance and the Write Once format ensures record authenticity that is far superior to magnetic disk and tape technology.
Approximately 10 percent of the digital data produced in the world resides on magnetic disk storage, and an estimated 90 percent of digital storage resides on removable storage media such as tape, optical (CD, DVD) or small-diameter removable disks.
Company) (Nasdaq:IVAC) received a follow-on order for two 200 Lean magnetic disk sputtering systems, which are scheduled for delivery and revenue recognition during the first half of 2006.
The dominant and most popular storage technology is magnetic disk, as it contains nearly all of the world's mission-critical data.
Approximately 10% of the digital data produced in the world resides on magnetic disk storage and an estimated 90% of digital storage resides on removable storage media such as tape, optical (CD, DVD) or small-diameter removable disks.