<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATMENT OF OPERATIONS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> JUN-30-1997 <CASH> 13,305 <SECURITIES> 17,268 <RECEIVABLES> 21,707 <ALLOWANCES> 0 <INVENTORY> 4,040 <CURRENT-ASSETS> 60,210 <PP&E> 6,916 <DEPRECIATION> 0 <TOTAL-ASSETS> 84,897 <CURRENT-LIABILITIES> 7,922 <BONDS> 260 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 470 <OTHER-SE> 72,754 <TOTAL-LIABILITY-AND-EQUITY> 84,897 <SALES> 28,965 <TOTAL-REVENUES> 30,457 <CGS> 4,794 <TOTAL-COSTS> 20,260 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 165 <INCOME-PRETAX> 10,032 <INCOME-TAX> 2,723 <INCOME-CONTINUING> 10,032 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 7,309 <EPS-PRIMARY> 0.14 <EPS-DILUTED> 0.14