`:::::: Hmmm, this turns out to be more difficult than I thought.  My main objection to ``customary`` and ``binary`` together was and remains that the customary interpretation of the prefixes ``K``, ``M`` and ``G``, even by the computer industry is the decimal one.  The very least that needs to be done is to explain to the reader that use of ``customary binary prefix`` in the article does not imply that the binary use of these prefixes is customary, except in a subset of the computer industry (Microsoft Windows + semiconductor industry + who else?).     `