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  2. Hard Disk Sentinel - Wikipedia

    en.wikipedia.org/wiki/Hard_Disk_Sentinel

    In 2008, Hard Disk Sentinel DOS version was released in different formats on bootable pen drive, CD, floppy. Usable when no operating system installed (or if the system is not bootable otherwise) to detect and display temperature, health status of IDE, SATA hard disk drives and with limited AHCI controller support.

  3. Device configuration overlay - Wikipedia

    en.wikipedia.org/wiki/Device_configuration_overlay

    Device configuration overlay (DCO) is a hidden area on many of today's hard disk drives (HDDs). Usually when information is stored in either the DCO or host protected area (HPA), it is not accessible by the BIOS (or UEFI), OS, or the user. However, certain tools can be used to modify the HPA or DCO.

  4. Disk formatting - Wikipedia

    en.wikipedia.org/wiki/Disk_formatting

    A block, a contiguous number of bytes, is the minimum unit of storage that is read from and written to a disk by a disk driver.The earliest disk drives had fixed block sizes (e.g. the IBM 350 disk storage unit (of the late 1950s) block size was 100 six-bit characters) but starting with the 1301 [8] IBM marketed subsystems that featured variable block sizes: a particular track could have blocks ...

  5. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    HDD with front cover to show its operation. 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.

  6. Windows File Recovery - Wikipedia

    en.wikipedia.org/wiki/Windows_File_Recovery

    Windows File Recovery can recover files from a local hard disk drive (HDD), USB flash drive, or memory card such as an SD card. [4] [5] It can work to some extent with solid-state drives (SSD). [6] The program is run using the winfr command. [4]

  7. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    By the end of 2007 in anticipation of a future IDEMA standard, Samsung and Toshiba began shipments of 1.8-inch hard disk drives with 4096 byte sectors. In 2010 IDEMA completed the Advanced Format standard for 4096 sector drives, [ 11 ] setting the date for the transition from 512 to 4096 byte sectors as January 2011 for all manufacturers, [ 12 ...

  8. Drive letter assignment - Wikipedia

    en.wikipedia.org/wiki/Drive_letter_assignment

    A: — Floppy disk drives, 3 + 1 ⁄ 2 ″ or 5 + 1 ⁄ 4 ″, and possibly other types of disk drives, if present. B: — Reserved for a second floppy drive (that was present on many PCs). C: — First hard disk drive partition. D: to Z: — Other disk partitions get labeled here. Windows assigns the next free drive letter to the next drive it ...

  9. Self-Monitoring, Analysis and Reporting Technology - Wikipedia

    en.wikipedia.org/wiki/Self-Monitoring,_Analysis...

    The disk drives would measure the disk's "health parameters", and the values would be transferred to the operating system and user-space monitoring software. Each disk drive vendor was free to decide which parameters were to be included for monitoring, and what their thresholds should be. The unification was at the protocol level with the host.

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