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  2. Communication during the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Communication_during_the...

    According to 9/11 Commission staff statement No. 17 [1] there were several communications failures at the federal government level during and after the 9/11 attacks. Perhaps the most serious occurred in an "Air Threat Conference Call" initiated by the National Military Command Center (NMCC) after two planes had crashed into the World Trade Center, but shortly before The Pentagon was hit.

  3. Minimally conscious state - Wikipedia

    en.wikipedia.org/wiki/Minimally_conscious_state

    A minimally conscious state or MCS is a disorder of consciousness distinct from persistent vegetative state and locked-in syndrome. Unlike persistent vegetative state, patients with MCS have partial preservation of conscious awareness. [ 1] MCS is a relatively new category of disorders of consciousness. The natural history and longer term ...

  4. Microsoft Product Activation - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Product_Activation

    Microsoft Product Activation is a DRM technology used by Microsoft Corporation in several of its computer software programs, most notably its Windows operating system and its Office productivity suite. The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to ...

  5. Altered state of consciousness - Wikipedia

    en.wikipedia.org/wiki/Altered_state_of_consciousness

    An altered state of consciousness ( ASC ), [ 1] also called an altered state of mind, altered mental status ( AMS) or mind alteration, is any condition which is significantly different from a normal waking state. By 1892, the expression was in use in relation to hypnosis, [ 2] though there is an ongoing debate as to whether hypnosis is to be ...

  6. Activation-synthesis hypothesis - Wikipedia

    en.wikipedia.org/wiki/Activation-synthesis...

    The activation-synthesis hypothesis, proposed by Harvard University psychiatrists John Allan Hobson and Robert McCarley, is a neurobiological theory of dreams first published in the American Journal of Psychiatry in December 1977. The differences in neuronal activity of the brainstem during waking and REM sleep were observed, and the hypothesis ...

  7. Safe mode - Wikipedia

    en.wikipedia.org/wiki/Safe_mode

    Safe mode. Safe mode is a diagnostic mode of a computer operating system (OS). It can also refer to a mode of operation by application software. Safe mode is intended to help fix most, if not all, problems within an operating system. It is also widely used for removing rogue security software.

  8. chmod - Wikipedia

    en.wikipedia.org/wiki/Chmod

    Type. Command. License. coreutils: GPLv3. Plan 9: MIT License. In Unix and Unix-like operating systems, chmod is the command and system call used to change the access permissions and the special mode flags (the setuid, setgid, and sticky flags) of file system objects ( files and directories ).

  9. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of WindowsWindows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...