Check out this decent explanation of PC bus types: http://physinfo.ulb.ac.be/cit_courseware/hs200/m2a.htm They leave out the MicroChannel(TM) bus though. It's dead anyway (RIP). -- Doug McNash dmcnash at smyrnacable.net _______________________________________________ Ale mailing list Ale at ale.org http://www.ale.org/mailman/listinfo/ale