This document explains how to gather basic information about a computer running Mac OS X.
To find the Mac OS version and memory information, go to the Apple menu and choose About This Mac.
The About This Mac window should look similar to this:
To get infomation about the hard drive, click once on the icon to select it.
From the File menu, select Get Info.
The Macintosh HD Info window should look similar to the next image. You may need to click the triangle next to General to expand that section.
OS X includes a utility called System Profiler that provides more advanced information about the system. In the About This Mac window, click the More Info button to open System Profiler.