This page is all about the meaning, abbreviation and acronym of ACU explaining the definition or meaning and giving useful information of similar terms. ACU Stands For : Aironet Client Utility, Automatic Client Upgrade, Access Control Unit, Array Configuration Utility, Automatic Calling Unit, Automatic Calling Unit.
APSL, BSD, GPL v2, and Apple EULA and NDA. Preceded by. OS X Mavericks (version 10.9) is the tenth major release of OS X (now named macOS), Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Mavericks was announced on June 10, 2013, at WWDC 2013, and was released on October 22, 2013, as a free upgrade through the Mac App Store worldwide.
For example, if you downloaded OS X 10.9 on the day Mavericks was released, you downloaded the 10.9. 0 installer. A bootable install drive you create from that installer will install OS X 10.9.0. However, Apple regularly updates the OS X installers it makes available for download from the Mac App Store. If you have multiple OS X installers (say, Mavericks and Mountain Lion), make sure the DiskMaker X message indicates that it has found the Mavericks installer. 2  If so, click Use This Copy. 3  If not, click Use Another Copy and manually locate the Install OS X Mavericks app.