Information about Operating System, Processor, and Memory is displayed in this window.
Underneath MAC OS X Look at the Version10…
10.8 Mountain Lion
10.6 Snow Leopard
Windows Operating System Information
Click on Start, point to All Programs, point to Accessories, and point to System Tools.
Click on System Information.
Information about Operating System, Processor, and Memory is displayed in the right-hand pane.
Note: If the system type is listed as X86, the computer is running a 32-bit version of the operating system. If the system type is X64, this computer is running a 64-bit version of the windows operating system.