Access this utility in any MacOS since 8.0+(?) under the Apple Menu:
In general, choose a tab, then expand the triangles to reveal more details.
Here's what info is available when fully expanded. Note the MAC Address, under Network / AppleTalk / Hardware Address:
Use this panel (and the one for Extensions) as a convenience over looking in the System Folder for what is currently running on their Macintosh.
Use this panel (and the one for Control Panels) as a convenience over looking in the System Folder for what is currently running on their Macintosh.
