(23 Sep 99) ************************************ * * * CHAPTER I - Introduction * * * ************************************ Input Philosophy Input to PC GAMESS may be in upper or lower case. are three types of input groups in PC GAMESS: 1. A pseudo-namelist, free format, keyword driven group. Almost all input groups fall into this first category. 2. A free format group which does not use keywords. The only examples of this category are $DATA, $ECP, $POINTS, and $STONE. 3. Formatted data. This data is never