Source : Free On-Line Dictionary of Computing

octal forty
     
         /ok'tl for'tee/ "I'm drawing a blank."
     
        {Octal} 40 (decimal 32) is the {ASCII} code for space
        character.  By an odd coincidence, {hex} 40 is the {EBCDIC}
        space character.
     
        See {wall}.
     
        [{Jargon File}]
     
        (1995-03-06)