Source : Free On-Line Dictionary of Computing

COM
     
        1.  {Component Object Model}.
     
        2.  {Computer Output on Microfilm}.
     
        (1999-06-12)

com
     
         ("commercial") The {top-level domain} typically
        for American companies, although it sees heavy use for
        international companies and {vanity domains} of all types,
        whether in the US or not.
     
        (1999-01-26)