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2. Hard disk drive - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive

   Computer memory and Computer data storage types. 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.

3. List of disk drive form factors - Wikipedia

   en.wikipedia.org/wiki/List_of_disk_drive_form...

   5.75 in × 3.25 in × 8 in (146.1 mm × 82.55 mm × 203 mm). This smaller form factor, first used in an HDD by Seagate in 1980, was the same size as full-height -inch-diameter (130 mm) FDD, 3.25-inches high. This is twice as high as "half height"; i.e., 1.63 in (41.4 mm). Most desktop models of drives for optical 120 mm disks (DVD, CD) use the ...

4. Hard disk drive interface - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive_interface

   Disk drive interfaces have evolved from simple interfaces requiring complex controllers to attach to a computer into high level interfaces that present a consistent interface to a computer system regardless of the internal technology of the hard disk drive. The following table lists some common HDD interfaces in chronological order:

5. History of hard disk drives - Wikipedia

   en.wikipedia.org/wiki/History_of_hard_disk_drives

   The commercial usage of hard disk drives (HDD) began in 1957, with the shipment of a production IBM 305 RAMAC system including IBM Model 350 disk storage. [4] US Patent 3,503,060 issued March 24, 1970, and arising from the IBM RAMAC program is generally considered to be the fundamental patent for disk drives. [5]

6. Hard disk drive failure - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive_failure

   A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer. A hard disk failure may occur in the course of normal operation, or due to an external factor such as exposure to fire or water or high magnetic fields , or suffering a sharp impact or ...

7. List of computer hardware manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_computer_hardware...

   Qlogic. Qualcomm. Ralink. Realtek. Solarflare. VIA Technologies. Winbond. There are a number of other companies (AMD, Microchip, Altera, etc) making specialized chipsets as part of other ICs, and they are not often found in PC hardware (laptop, desktop or server). There are also a number of now defunct companies (like 3com, DEC, SGI) that ...