The most critical moment in the story. The point at which the main conflict is at its highest point. Example: In the story of Cinderella, the true climax is when the Prince shows up at Cinderella's house and puts the glass slipper on her foot.
Automator is a software program developed expressly for use on an Apple computer running Mac OS X 10.4 Tiger or later. In addition to Tiger, Automator is compatible with OS X versions 10.5 Leopard, 10.6 Snow Leopard and 10.7 Lion. It works well in conjunction with Microsoft Office, iCal, Address Book, Photoshop and other third-party applications.
Installer is an application included in macOS (and in its progenitors OPENSTEP and NeXTSTEP) that extracts and installs files out of .pkg packages. It was created by NeXT, and is now maintained by Apple Inc. Its purpose is to help software developers create uniform software installers.