OSDev.org

I remember, once, have studied the development of an operating system, an entire site in German, which I do not mistake me, I took the forum site here, so I wonder if anyone has the link that site, where it showed step by step the development of an OS.

Thanks
Alexandre

Perhaps you found your link here.

Or just the "other languages" interwiki link on the main page. You might mean this tutorial series.