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  2. Disk compression - Wikipedia

    en.wikipedia.org/wiki/Disk_compression

    A disk compression software utility increases the amount of information that can be stored on a hard disk drive of given size. Unlike a file compression utility, which compresses only specified files—and which requires the user to designate the files to be compressed—an on-the-fly disk compression utility works automatically through resident software without the user needing to be aware of ...

  3. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    For most disks, each sector stores a fixed amount of user-accessible data, traditionally 512 bytes for hard disk drives (HDDs), and 2048 bytes for CD-ROMs, DVD-ROMs and BD-ROMs. [1] Newer HDDs and SSDs use 4096 byte (4 KiB) sectors, which are known as the Advanced Format (AF). The sector is the minimum storage unit of a hard drive. [2]

  4. Large-file support - Wikipedia

    en.wikipedia.org/wiki/Large-file_support

    Files that were too large for 32-bit operating systems to handle came to be known as large files. While the limit was quite acceptable at a time when hard disks were smaller, the general increase in storage capacity combined with increased server and desktop file usage, especially for database and multimedia files, led to intense pressure for ...

  5. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    Video hard drives, sometimes called "surveillance hard drives", are embedded into digital video recorders and provide a guaranteed streaming capacity, even in the face of read and write errors. [148] Drives embedded into automotive vehicles; they are typically built to resist larger amounts of shock and operate over a larger temperature range.

  6. Defragmentation - Wikipedia

    en.wikipedia.org/wiki/Defragmentation

    Defragmentation is advantageous and relevant to file systems on electromechanical disk drives (hard disk drives, floppy disk drives and optical disk media). The movement of the hard drive's read/write heads over different areas of the disk when accessing fragmented files is slower, compared to accessing the entire contents of a non-fragmented ...

  7. Mass storage - Wikipedia

    en.wikipedia.org/wiki/Mass_storage

    The notion of "large" amounts of data is of course highly dependent on the time frame and the market segment, as storage device capacity has increased by many orders of magnitude since the beginnings of computer technology in the late 1940s and continues to grow; however, in any time frame, common mass storage devices have tended to be much larger and at the same time much slower than common ...

  8. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    This compression was done by creating a very large file on the partition, then storing the disk's data in this file. At startup, device drivers opened this file and assigned it a separate letter. Frequently, to avoid confusion, the original partition and the compressed drive had their letters swapped, so that the compressed disk is C:, and the ...

  9. DriveSpace - Wikipedia

    en.wikipedia.org/wiki/DriveSpace

    In the most common usage scenario, the user would have one hard drive in the computer, with all the space allocated to one partition (usually as drive C:). The software would compress the entire partition contents into one large file in the root directory. On booting the system, the driver would allocate this large file as drive C:, enabling ...

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