is a software utility
that has been bundled with Mac OS
since Mac OS 7.6
(until Mac OS X
it was called Apple System Profiler). It compiles technical information on all of the installed hardware, devices, drivers, applications, system settings, system software programs and kernel extensions
installed on the host computer. It can export this information as plain text
or in the plist XML
format. This information is used to diagnose problems. A user can send the information directly to Apple
if the user desires. It has support for scripting automation through AppleScript and some limited support in Automator.
System information can also be accessed by using the "system_profiler" command through a Terminal application. For more information, execute "man system_profiler" or "system_profiler -h" in an Mac OS X terminal application.