Universal Access
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Universal Access

Apple Universal Access is a component of the Mac OS X operating system that provides computing abilities to people with visual impairment, hearing impairment, or physical disability.


Universal Access is a preference pane of the System Preferences application. It includes four sub-components, each providing different options and settings.


  • Turn On/Off Screen Zooming
  • Inverse Colors (White on Black, also known as reverse colors), +++8
  • Set Display to Greyscale (10.2 onwards)
  • Enhance Contrast
  • Enable Access for Assistive Devices
  • Enable Text-To-Speech for Universal Access Preferences
  • Disable unnecessary automatic animations


  • Flash the screen when an alert sound occurs
  • Raise/Lower Volume


  • Sticky Keys (Treat a sequence of modifier keys as a key combo)
  • Slow keys (Delay between key press and key acceptance)


  • Mouse Keys (Use the numeric keypad in place of the mouse)
  • Mouse Pointer Delay
  • Mouse Pointer Max Speed
  • Mouse Pointer enlarging

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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