_ _ _ |. _ _~_ (/_(_(/_||_\ ( 0)-_ ) -' (\__--) ) \=-__-=/ (DIR) phlog Ramblings, thoughts, hacking and other posts in what used to be ExpressIT web log (English & Spanish). (DIR) ITS Notes on MIT's A.I. lab Incompatible Timesharing System (DIR) TOPS-20 Notes on Digital Equipement Corporation's TOPS-20 Operating System for the PDP-10 computer (DIR) SDF Texts related to SDF Public Access Unix System (DIR) Writings Texts of my own (English & Spanish) (DIR) MiKiwi A wiki attempt since 2005, assorted topics from server administ obscure operating systems, databases and howtos. (Spanish)