" 
 ::The full quote (at 79:46) is ""This is the voice of Colossus - the voice of Guardian - we are one.  This is the voice of unity.  Forbin!""  ""Yes?""  ""After reviewing all personnel files..."" (etc).  I agree that the computer doesn't explicitly _name_ itself ""Unity"" (and does explicitly name itself ""World Control"" later on), but it does use the word.   "