<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <CASH> 14,356 <SECURITIES> 22,306 <RECEIVABLES> 28,043 <ALLOWANCES> 2,748 <INVENTORY> 10,602 <CURRENT-ASSETS> 79,931 <PP&E> 25,816 <DEPRECIATION> 20,948 <TOTAL-ASSETS> 86,556 <CURRENT-LIABILITIES> 19,382 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 66,212 <OTHER-SE> 757 <TOTAL-LIABILITY-AND-EQUITY> 86,556 <SALES> 65,426<F1> <TOTAL-REVENUES> 65,426 <CGS> 38,378<F2> <TOTAL-COSTS> 38,378 <OTHER-EXPENSES> 25,683 <LOSS-PROVISION> 66 <INTEREST-EXPENSE> 36 <INCOME-PRETAX> 2,582 <INCOME-TAX> 1,033 <INCOME-CONTINUING> 1,549 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,549 <EPS-PRIMARY> 0.08 <EPS-DILUTED> 0.08 <FN> <F1>Includes revenues from licensing of software and support services. <F2>Includes costs from licensing of software and support services. </FN>