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A hard disk drive (HDD), hard disk, hard drive, or fixed disk [a] is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.
A hard disk drive is a computer storage device containing rigid rotating platters. Hard Drive may also refer to: Solid-state drive, a computer storage device that has no moving parts; Hard Drive (The Sorry Kisses album), a 2008 album by The Sorry Kisses; Hard Drive (Art Blakey album), a 1957 album by Art Blakey and the Jazz Messengers
2.5-inch hard disk drives often consume less power than larger ones. [12] [13] Low capacity solid-state drives have no moving parts and consume less power than hard disks. [14] [15] [16] Also, memory may use more power than hard disks. [16] Large caches, which are used to avoid hitting the memory wall, may also consume a large amount of power.
Solid-state drive (SSD) Hard disk drive (HDD) Price per capacity SSDs are generally more expensive than HDDs and are expected to remain so. As of early 2018, SSD prices were around $0.30 per gigabyte for 4 TB models. [23] HDDs, as of early 2018, were priced around $0.02 to $0.03 per gigabyte for 1 TB models. [23] Storage capacity
A disk drive is a device implementing such a storage mechanism. Notable types are hard disk drives (HDD), containing one or more non-removable rigid platters; the floppy disk drive (FDD) and its removable floppy disk; and various optical disc drives (ODD) and associated optical disc media.
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Hard disk with platter Inside view of a hard disk Hard disk drive platter, 2.5" Samsung MP0402H. A hard disk drive platter or hard disk is the circular magnetic disk on which digital data is stored in a hard disk drive. [1] The rigid nature of the platters is what gives them their name (as opposed to the flexible materials which are used to ...
Hard disk drive; Hand Drawn Dracula, a record label; Head-down display; Heating degree day; High definition display; Honorary Doctor of Divinity; Horizontal Directional Drilling; Hyderabad Airport (Sindh) (IATA:HDD), in Pakistan /dev/hdd; see Device file § naming conventions; Hard Drive Divinity, the transformed state of CPUs in Hyperdimension ...