There is a generic PC icon. I never looked at it before but it seems to have changed from what it was.
It is located in:
/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/GenericPCIcon.i cns
(When you get to "CoreTypes.bundle", right click to "Show package contents")
It is called "Generic PCIcon.icns" but it is a Windows logo. Perhaps a change with the update?
You may be able to use the icon in Ars Technica by dragging the image to your desktop.
-mj
macjack@gmail.com