Fs
From Wikipedia, the free encyclopedia.

fs or FS may stand for:

• femtosecond (fs), "femto-" and "second"
• Ferrocarril de Sóller (FS), railway on Mallorca
• Ferrovie dello Stato (FS), Italian railways
• file system

The original article can be found at: http://en.wikipedia.org/wiki/Fs.
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