Source : Free On-Line Dictionary of Computing

Comdex
     
        A computer show that is held twice yearly, once in the spring
        (in Atlanta) and once in autumn (in Las Vegas).  Comdex is a
        major show during which new releases of software and hardware
        are made.  {Microsoft}, for example, often annouces its
        products at Comdex.
     
        (1995-01-11)