Your Hewlett-Packard Model 1610A Logic State Analyzer (called simply 1610A in this book) is a general-purpose instrument which extends measurement capabilities in the Data Domain beyond the capabilities of any previous machine. Analysis of the most advanced state machines, and the most complex software, is possible using the 161 OA. Yet Operating simplicity has been achieved by user-oriented engineering design; the 161 OA performs many routine “house-keeping” chores that the operator used to do.