From Windows to OS X

System Profiler

Windows: Device Manager or System Information

OS X: System Profiler

The System Profiler is located in the Applications>Utilities folder. It can also be launched from the ‘More Info…’ button on the About This Mac window.

System Profiler lists information about your Mac such as hardware and software installed. It’s a cross between the Device Manager and System Information in Windows. With System Profiler, you can find information such as your computer serial number, processor speed, system memory and video memory. You will also find details about the hardware components installed such as model numbers and ROM revisions. This information can be useful in troubleshooting problems (what problems, this is a Mac) or be used by Apple Tech Support.

Software information including installed applications, fonts and startup items can be found here as well. Plus you can view the various logs that OS X creates. Which is also good for troubleshooting.

You can also save, print or copy and paste the detail information or send it to Apple Tech Support.