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  2. Disk Utility - Wikipedia

    en.wikipedia.org/wiki/Disk_Utility

    Secure deletion of free space or disk using a "zero out" data, a 7-pass DOD 5220-22 M standard, or a 35-pass Gutmann algorithm; Adding or changing partition table between Apple Partition Map, GUID Partition Table, and master boot record (MBR) Restoring volumes from Apple Software Restore (ASR) images; Checking the S.M.A.R.T. status of a hard disk

  3. Hidden file and hidden directory - Wikipedia

    en.wikipedia.org/wiki/Hidden_file_and_hidden...

    In DOS systems, file directory entries include a Hidden file attribute which is manipulated using the attrib command. Using the command line command dir /ah displays the files with the Hidden attribute. In addition, there is a System file attribute that can be set on a file, which also causes the file to be hidden in directory listings.

  4. File system fragmentation - Wikipedia

    en.wikipedia.org/wiki/File_system_fragmentation

    File segmentation, also called related-file fragmentation, or application-level (file) fragmentation, refers to the lack of locality of reference (within the storing medium) between related files. Unlike the previous two types of fragmentation, file scattering is a much more vague concept, as it heavily depends on the access pattern of specific ...

  5. MacBook Air (Intel-based) - Wikipedia

    en.wikipedia.org/wiki/MacBook_Air_(Intel-based)

    On October 30, 2018, Apple released the Retina MacBook Air, with Amber Lake processors, a 13.3-inch Retina display with a resolution of 2560×1600 pixels, Touch ID, a Force Touch trackpad, and two combination USB-C 3.1 gen 2/Thunderbolt 3 ports plus one audio jack. The screen displays 48% more color and the bezels are 50% narrower than the ...

  6. MacBook Air - Wikipedia

    en.wikipedia.org/wiki/MacBook_Air

    Steve Jobs introduced the MacBook Air during Apple’s keynote address at the 2008 Macworld conference on January 15, 2008. [4] The first MacBook Air was a 13.3-inch model, initially promoted as the world's thinnest notebook at 1.9 cm (0.75 in) (a previous record holder, 2005's Toshiba Portege R200, was 1.98 cm (0.78 in) high).

  7. Apple Disk Image - Wikipedia

    en.wikipedia.org/wiki/Apple_Disk_Image

    Apple [1] Disk Image is a disk image format commonly used by the macOS operating system. When opened, an Apple Disk Image is mounted as a volume within the Finder.. An Apple Disk Image can be structured according to one of several proprietary disk image formats, including the Universal Disk Image Format (UDIF) from Mac OS X and the New Disk Image Format (NDIF) from Mac OS 9.

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