  VAX 4000 model 100 vs model 100A? 
 The Question is:
 
What is the difference in a VAX 4000/100 and a 4000/100A?
 
 
 The Answer is :
 
  The VAX 4000 model 100A has two on-board DSSI buses
  standard, while the VAX 4000 model 100A has one.
 
 Answer written or last revised on  17-DEC-2003 
