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  2. Optical disc drive - Wikipedia

    en.wikipedia.org/wiki/Optical_disc_drive

    A PCMCIA optical drive interface was also developed for laptops. A SCSI card could be installed in desktop PCs to cater for an external SCSI drive enclosure or to run internally mounted SCSI Hard disk drives and optical drives, though SCSI was typically somewhat more expensive than other options, with some OEMs charging a premium for it.

  3. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    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.

  4. Drive letter assignment - Wikipedia

    en.wikipedia.org/wiki/Drive_letter_assignment

    Drive letter assignment. Alphabetical assignment to logical drives on computers (e.g., C:\) MS-DOS command prompt with drive letter C as part of the current working directory. File Manager displaying the contents of drive C. In computer data storage, drive letter assignment is the process of assigning alphabetical identifiers to volumes.

  5. Optical storage - Wikipedia

    en.wikipedia.org/wiki/Optical_storage

    An optical disc drive is a device in a computer that can read CD-ROMs or other optical discs, such as DVDs and Blu-ray discs. Optical storage differs from other data storage techniques that make use of other technologies such as magnetism , such as floppy disks and hard disks , or semiconductors , such as flash memory .

  6. Magneto-optical drive - Wikipedia

    en.wikipedia.org/wiki/Magneto-optical_drive

    A magneto-optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto-optical disc. 130 mm (5.25 in) and 90 mm (3.5 in) discs were the most common sizes. In 1983, just a year after the introduction of the compact disc, Kees Schouhamer Immink and Joseph Braat presented the first experiments with erasable ...

  7. Disk image - Wikipedia

    en.wikipedia.org/wiki/Disk_image

    Creating a virtual disk image of optical media or a hard disk drive is typically done to make the content available to one or more virtual machines. Virtual machines emulate a CD/DVD drive by reading an ISO image. This can also be faster than reading from the physical optical medium. [20] Further, there are less issues with wear and tear.

  8. Optical disc - Wikipedia

    en.wikipedia.org/wiki/Optical_disc

    Optical discs. An optical disc is a flat, usually [note 1] disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines ...

  9. SATA - Wikipedia

    en.wikipedia.org/wiki/SATA

    A 3.5-inch Serial ATA hard disk drive A 2.5-inch Serial ATA solid-state drive. SATA was announced in 2000 [4] [5] in order to provide several advantages over the earlier PATA interface such as reduced cable size and cost (seven conductors instead of 40 or 80), native hot swapping, faster data transfer through higher signaling rates, and more efficient transfer through an (optional) I/O queuing ...

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