Mac OS X has file-sharing compatibility with Windows PCs built into the OS. I use a shared drive on the Windows XP box behind the TV to store media files and run network backups.
Here’s the default MacOS X icon for Windows-based network resources:
For the non-geek readers, that’s a CRT with a Windows BSoD (Blue Screen of Death) on it.
It’s a minor bit of low-level passive-aggressive snark, but it got a chuckle out of me this morning. I never realized it was a BSoD until I looked at a large version of the icon.
I haven’t looked at Windows 7 in detail yet, so I don’t know if the Redmond crew retaliated by making their icon for Mac file shares a snotty turtleneck-wearing hipster with iPod earbuds screwed into his cranium.