3 You can run XABACUS via FREEWARE_DEMO.COM procedure    ANYTHING SPECIAL IN USING?  >     Click on the left mouse button on a bead you want to move.C     Click on the right mouse button or press 'C' or 'c' if you want      to clear the abacus.(     'Q', 'q', Control-C to kill program.  F     There are books on how to use an abacus, but basically all it doesK     is add and subtract, the rest you have to do in you head.  Essentially, I     this is a proof by induction that a computer is more powerful than an L     abacus, since a computer program can contain an abacus. (But then again,K     you can simulate a computer within a computer, so what does that show). J     Actually, with a real abacus, one can move more than one row at a timeH     with 10 fingers.  But on the other hand, a real abacus does not have,     the current sum displayed as an integer.    @ Sources are available under [.SRC] directory in XABACUS.ZIP file     Patrick Moreau   pmoreau@cena.dgac.fr moreau_P@decus.decus.fr 