Editing Au (section)

==Science and technology==
===Computing===
* [[.au]], the internet country code for Australia
* [[Au file format]], Sun Microsystems' audio format
* [[Audio Units]], a system level plug-in architecture from Apple Computer
* [[Adobe Audition]], a sound editor program
* [[Windows Update]] or Automatic Updates, in Microsoft Windows
* [[Windows 10 Anniversary Update]], of August 2016a

===<span id="unit">Physics and chemistry</span>===
* [[Gold]], chemical symbol Au
* [[Absorbance]] unit, a reporting unit in spectroscopy
* [[Atomic units]], a system of units convenient for atomic physics and other fields
* [[Ångström unit]], a unit of length equal to 10<sup>−10</sup> m or 0.1 nanometre. 
* [[Astronomical unit]], a unit of length used in planetary systems astronomy
* [[Arbitrary unit]], a placeholder unit for when the actual value of a measurement is unknown or unimportant