Currency USD
Hard Drives For Sale buy in Buffalo Grove
Buy Hard Drives For Sale
Hard Drives For Sale

Hard Drives For Sale

In stock
Reconfirm the price with seller
Shipping:
Seller
USA, Buffalo Grove
(View map)
+1(8 
Display phones
Description

A hard disk drive (HDD; also hard drive, hard disk, or disk drive)[note 2] is a data storage device used for storing and retrievingdigital information from non-volatile memory (retaining its data even when powered off) in a random-access manner (data can be retrieved in any order rather than just sequentially). An HDD consists of one or more rigid ("hard") rapidly rotating discs (platters) coated with magnetic material, with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces.

Introduced by IBM in 1956, HDDs became the dominant secondary storage device for general purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and PCs. More than 200 companies have produced HDD units, though most current units are manufactured by Western Digital, Seagate, and Toshiba. Worldwide revenues for HDDs shipments are expected to reach $38 billion in 2012, up about 19% from $32 billion in 2011.

The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion bytes). Typically, some of an HDD's capacity is unavailable to the user due to use by the file system and the computer operating system, and possibly inbuilt redundancy for error correction and recovery. Performance is specified by the time to move the heads to a file (average access time) plus the time it takes for the file to move under its head (average latency, a function of the physical rotational speed in revolutions per minute) and the speed at which the file is transmitted (data rate).

Apricorn
Castlewood System
Fujitsu
Hitachi
IBM
Iomega
Maxtor
NEC
Quantum
Samsung
Seagate
Sony
Toshiba
Western Digital
Contact the seller
Hard Drives For Sale
Hard Drives For Sale
Shipping method
Compare0
ClearSelected items: 0